How do I find the velocity when I already have kinetic energy (power) and mass?
I know the equation for Kinetic energy is:
(mass X velocity,squared)
_____________________
2
(mv, squared) /2
but I already have the kinetic energy (power) and the mass. How do I rearrange the equation so I can find velocity?
KE = 0.5mv^2
2KE = mv^2
2KE / m = v^2
v = sqrt(2KE / m)
In the formula for kinetic energy, it's is only the velocity that is squared, not the mass as well.
Kinetic energy is just that, energy, NOT power. Power is a measure of energy per unit time. Energy is measured in joules (J), power is measured in watts (W = J/s).
 |
 NEWEu energy meter Watt Voltage Volt Meter Monitor Analyzer with power factor $14.55 (18 Bids) Time Remaining: 8h 30m |
 New Titanium Magnetic Power 2000 Ionics Ion Bracelet Energy Wristband w Box $24.99 Time Remaining: 12d 2h Buy It Now for only: $24.99 Buy It Now |
 NEWUSA energy meter Watt Voltage Volt Meter Monitor Analyzer with power factor $15.00 Time Remaining: 8h 48m |
 White 3528 300LED 5M 60LED M Light Strip LED Saving Energy Power Bright Xmas $1.25 (9 Bids) Time Remaining: 12h 25m |
 NEW 10PCS E27 GU10 MR16 9w 12w 15w High Power Energy Saving LED Lights Bulb Lamp $42.22 Time Remaining: 8d 19h 34m Buy It Now for only: $42.22 Buy It Now |
 10pcs LED E27 9W 3x3w Pure Light High Power Energy Saving Bulb Lamp AC 85v 265v $26.00 (19 Bids) Time Remaining: 18h 43m |
 10pcs E27 LED 9W 3x3W Warm White High Power Energy Saving Bulb Lamp AC 85 265v $24.50 (9 Bids) Time Remaining: 18h 43m |
 Amega Infinity Power Ion Balance Energy Bracelet w FIR Germanium Magnetic Health $14.49 Time Remaining: 18d 10h 35m Buy It Now for only: $14.49 Buy It Now |
 NEW 10pcs LED E14 9W 3X3W Cool Light High Power Energy Saving Bulb Lamp 110 240v $22.50 (5 Bids) Time Remaining: 18h 43m |
 10pcs E27 LED 9W 3x3W Pure Light High Power Energy Saving Bulb Lamp 110v 240v $14.00 (6 Bids) Time Remaining: 18h 46m |
 GU10 E27 MR16 9W LED Spot Light Lamp Bulb Warm Cool White Energy Saving Power $36.98 Time Remaining: 12d 19h 12m Buy It Now for only: $36.98 Buy It Now |
 NEW 10pcs MR16 LED 9W 3x3W Warm Light High Power Energy Saving Bulb Lamp LED 12V $18.50 (6 Bids) Time Remaining: 18h 46m |
 10pcs GU10 LED 9W 3x3W Cool Light High Power Energy Saving Bulb Lamp 110v 240v $11.50 (6 Bids) Time Remaining: 18h 47m |
 Power Xtreme Balance Wristband Energy Bracelet Size S M L Free Ship USA Seller $4.90 Time Remaining: 16d 16h 57m Buy It Now for only: $4.90 Buy It Now |
 Coherent FM FieldMaster Laser Power Energy Meter with lm45 thermopile detector $455.00 (3 Bids) Time Remaining: 18h 53m |
 AU Plug in Power Energy Watt Voltage Amps Meter Monitor Analyzer Meter Monitor $14.49 (1 Bid) Time Remaining: 19h 6m |
 Dimmable PAR20 GU10 led light 3x3w 9W power Spot lamp energy warm cool white $0.96 Time Remaining: 20h 37m |
 YOU WILL FEEL FULL OF POWER ENERGY WRISTBAND PRETTY BRACELET MULTICOLOR b1 $4.48 Time Remaining: 3h 26m Buy It Now for only: $4.48 Buy It Now |
 Dimmable PAR20 E27 led light 3x3w 9w power E26 Spot lamp energy warm cool white $0.96 Time Remaining: 21h 4m |
 New PAR20 GU10 led light 3x3w 9w power Spot lamp energy save warm cool white $0.96 Time Remaining: 21h 16m |
 10pcs LED E14 E27 B22 9W 12W 15W High Power Energy Saving Bulb Lamp AC 85 265v $55.10 Time Remaining: 12d 7h 20m Buy It Now for only: $55.10 Buy It Now |
 Dimmable PAR20 GU10 led light 3x3w 9W power Spot lamp energy warm cool white $7.49 Time Remaining: 21h 29m |
 New PAR20 E27 led light 3x3w 9w power E26 Spot lamp energy save warm cool white $0.96 Time Remaining: 21h 44m |
 NEGATIVE ION X POWER ENERGY BALANCE WRISTBAND BRACELET $19.99 Time Remaining: 11d 16h 27m Buy It Now for only: $19.99 Buy It Now |
 New PAR20 GU10 led light 3x3w 9w power Spot lamp energy save warm cool white $6.29 Time Remaining: 22h 9m |
 NEWEu energy meter Watt Voltage Volt Meter Monitor Analyzer with power factor $0.01 Time Remaining: 23h 52m |
 POWER AUTHENTIC SPORT Energy Up+ ION Bracelet Titanium Balance Band Wristband $29.99 Time Remaining: 3d 21h 54m Buy It Now for only: $29.99 Buy It Now |
 NEW E27 3W Cool White Led High power Energy Saving Light Lamp Globe Bulb $2.34 (7 Bids) Time Remaining: 1d 5h 1m |
 E27 5W Warm White LED High power Energy Saving Light Lamp Globe Bulb 85 265V AC $2.25 (4 Bids) Time Remaining: 1d 11h 39m |
 New Titanium Germanium Power Ionic Plus Magnetic Bracelet Band Balance Energy $13.99 Time Remaining: 22d 19h 55m Buy It Now for only: $13.99 Buy It Now |
 White 3528 300LED 5M 60LED M Light Strip LED Saving Energy Power Bright Xmas $0.06 (2 Bids) Time Remaining: 1d 12h 25m |
 10pcs E27 6W 3x2w LED Pure Light High Power Energy Saving Bulb Lamp AC 110 220v $21.50 (17 Bids) Time Remaining: 1d 20h 4m |
 NEW 10pcs LED E27 6W 3X2W Warm Light High Power Energy Saving Bulb Lamp 110 220V $21.50 (10 Bids) Time Remaining: 1d 20h 4m |
 COHERENT FIELDMAX POWER ENERGY METER $400.00 Time Remaining: 6d 14h 21m Buy It Now for only: $400.00 Buy It Now |
 10pcs E14 LED 6W 3x2W Warm Light High Power Energy Saving Bulb Lamp 110v 240v $21.50 (8 Bids) Time Remaining: 1d 20h 4m |
 NEW 10pcs LED E14 6W 3X2W Cool Light High Power Energy Saving Bulb Lamp 110 240v $26.00 (17 Bids) Time Remaining: 1d 20h 4m |
 New Power Titanium 2000 Ionic Ion Sports Energy Wristband Bracelet Color U Pick $7.99 Time Remaining: 12d 2h 9m Buy It Now for only: $7.99 Buy It Now |
 12V 10W Cool White High Light Energy Saving High Power LED Bulb $2.00 (3 Bids) Time Remaining: 1d 20h 6m |
 10pcs GU10 LED 9W 3x3W Pure Light High Power Energy Saving Bulb Lamp 110v 240v $10.50 (10 Bids) Time Remaining: 1d 21h 30m |
 Amega Infinity 3X Balance Power Energy Bracelet w FIR Germanium Magnetic Health $17.49 Time Remaining: 8h Buy It Now for only: $17.49 Buy It Now |
 10pcs E27 LED 9W 3x3W Warm Light High Power Energy Saving Bulb Lamp 110v 240v $9.50 (4 Bids) Time Remaining: 1d 21h 30m |
 NEW 10pcs MR16 LED 9W 3x3W Cool Light High Power Energy Saving Bulb Lamp LED 12V $11.50 (3 Bids) Time Remaining: 1d 21h 30m |
 POWER BALANCE ENERGY SPORTS NECKLACE 24 INCH W PERFORMANCE TECHNOLOGY $7.98 Time Remaining: 20d 17h 40m Buy It Now for only: $7.98 Buy It Now |
 10pcs E14 12W 4X3W Warm White LED Spot Light High Power Energy Saving Bulb Lamp $39.99 Time Remaining: 2d 2h 46m |
 USA plug in energy meter electricity monitor energy saving US style power meter $0.10 Time Remaining: 2d 5h 52m |
 E27 Warm White 3W LED Energy Saving High Power Spot Light Lamp Bulb 85V 260V New $2.60 (3 Bids) Time Remaining: 2d 6h 12m |
 80 Germanium Titanium Energy Bracelet Power Bangle Man Women Hot $8.45 Time Remaining: 23d 21h 23m Buy It Now for only: $8.45 Buy It Now |
 E27 3W Cool White 31W LED Energy Saving High Power Spot Light Lamp Bulb 85 260V $0.99 (1 Bid) Time Remaining: 2d 6h 32m |
 Solar Energy Powered Toy Grasshopper Green Science $1.30 (2 Bids) Time Remaining: 2d 11h 52m |
 wholesale 10pcs LED E27 6 8 9W 12W High Power Energy Saving Bulb Lamp AC 85 265v $42.20 Time Remaining: 12d 7h 21m Buy It Now for only: $42.20 Buy It Now |
 NEW Solar Energy Powered Toy Grasshopper Green Science $1.30 (2 Bids) Time Remaining: 2d 11h 52m |
 White 3528 300LED 5M 60LED M Light Strip LED Saving Energy Power Bright Xmas $0.01 (1 Bid) Time Remaining: 2d 12h 25m |
 5x GU10 High Power 4W LED Energy Saving Warm White Spot Light Bulb Lamp 110 220V $16.48 Time Remaining: 19d 2h 55m Buy It Now for only: $16.48 Buy It Now |
 New GU10 5W Energy Saving Spot High Power LED Light Lamp Bulb Pure white 85 265V $0.99 Time Remaining: 2d 16h 37m |
 New Power Up Balance Power Bands Energy bracelets Sport wristband S M L 2999 $5.00 Time Remaining: 2d 16h 51m |
 2013 New 100 Epistar Cree 9W LED SpotLight High Power Energy Saving VS Halogen $3.99 Time Remaining: 15d 4h 32m Buy It Now for only: $3.99 Buy It Now |
 10 Balance Energy Power Hologram Stickers G03 $2.99 Time Remaining: 2d 18h 51m Buy It Now for only: $4.99 Buy It Now |
 New 5W MR16 Energy Saving Spot High Power LED Light Lamp Bulb Warm white 12V $0.99 Time Remaining: 2d 19h 27m |
 Amega Infinity Titanium Power 6000 Neg Ions Bracelet Band Balance Sports Energy $14.49 Time Remaining: 18d 12h 6m Buy It Now for only: $14.49 Buy It Now |
 E27 35W 280 Lumen 6500K 48 SMD 3528 LED White Energy saving High Power Light $1.99 Time Remaining: 2d 19h 55m |
 10Pcs E27 Light Bulbs Warm White 3X3W CREE LED Power Spot Light Energy Saving B $0.06 (2 Bids) Time Remaining: 2d 20h 2m |
 80 Germanium Titanium Energy Bracelet Power Bangle Helpful Gift $4.25 (7 Bids) Time Remaining: 2d 21h 25m |
 New Power Up Balance Power Bands Energy bracelets Sport wristband S M L 2999 $6.99 Time Remaining: 19h 40m Buy It Now for only: $6.99 Buy It Now |
 EU Power Energy Meter Watt Voltage Amps Meter Power Monitor $14.49 Time Remaining: 2d 21h 50m |
 US Power Energy Meter Watt Voltage Amps Meter LCD Monitor Overload Display $14.49 Time Remaining: 2d 21h 50m |
 POWER ENERGY WRISTBAND BALANCE BRACELET PICK COLOR LARGE MEDIUM SM XL XS BLACK $7.00 Time Remaining: 3d 15h 53m Buy It Now for only: $7.00 Buy It Now |
 Energy Power Watt Voltage Volt Meter Monitor Analyzer EU Plug Mini Ammeter 240V $0.90 Time Remaining: 2d 21h 57m |
 UK Plug in Power Energy Meter Watt Voltage Amps Meter Analyzer Monitor $14.59 Time Remaining: 2d 21h 57m |
 New Power Titanium Ion Silicone Sports Bracelets Wristband Band Energy Free Ship $1.99 Time Remaining: 12d 2h Buy It Now for only: $1.99 Buy It Now |
 80 Germanium Titanium Energy Bracelet Power Bangle Helpful Gift $7.99 Time Remaining: 2d 22h 8m |
 Warm white GU10 5W Energy Saving Spot High Power LED Light Lamp Bulb 85 265v $0.99 Time Remaining: 2d 22h 26m |
 TED 5000 C Series 50 REBATE The Energy Detective Kill A Watt Power Monitor $239.95 Time Remaining: 18d 22h 23m Buy It Now for only: $239.95 Buy It Now |
 PAR20 E27 9W 33W Spotlight Lamp Bulb UltraBright Warm Cool White Power Energy $5.83 Time Remaining: 2d 23h 33m |
 AU plug in Energy meter Watt Voltage Volt Meter Monitor Analyzer power meter $0.99 (1 Bid) Time Remaining: 3d 1h 49m |
 Pure Germanium Health Necklace Power Energy Balance 2Tone Japan Design JUJU M01B $26.82 Time Remaining: 6d 5h 1m Buy It Now for only: $26.82 Buy It Now |
 10Pcs 9W E14 LED Bulbs Power Spot Light Lamp CREE LED 220V 110V Energy Saving $39.99 Time Remaining: 3h 57m |
 Germanium Infrared Titanium Energy Bracelet Power Bangle Hearty Care $1.04 (4 Bids) Time Remaining: 3d 21h 16m |
 5W E27 Energy Saving Spot High Power LED Light Lamp Bulb Warm white 85 265v $0.99 Time Remaining: 4d 12h 26m |
 NEW AC Digital LED power meter monitor Voltage KWh time watt energy Volt Ammeter $14.38 Time Remaining: 5d 21h 31m Buy It Now for only: $14.38 Buy It Now |
 10PCS GU10 5W Energy Saving Spot High Power LED Light Lamp Bulb Pure white $25.99 Time Remaining: 4d 18h 47m |
 10 Balance Energy Power Hologram Stickers G05 $2.99 Time Remaining: 4d 19h 59m Buy It Now for only: $4.99 Buy It Now |
 10x New 100 Epistar Cree 9W LED SpotLight High Power Energy Saving VS Halogen $36.99 Time Remaining: 6d 1h 53m Buy It Now for only: $36.99 Buy It Now |
 10pcs E14 12W 4X3W Cool White LED Crysatl Light Power Energy Saving Bulb Lamp $42.45 Time Remaining: 4d 22h 43m |
 Dimmable PAR20 E27 led light 3x3w 9w power E26 Spot lamp energy warm cool white $7.49 Time Remaining: 44m |
 POWER AUTHENTIC TITANIUM Taichi Energy SPORT Bracelet Ion Balance Band Wristband $44.99 Time Remaining: 13d 14h 41m Buy It Now for only: $44.99 Buy It Now |
 Wholesale 10Pcs E27 Light Bulb 5X3W Power Spot Light Lamp Energy Saving Cree LED $49.99 Time Remaining: 3h 57m |
 Wholesale 10Pcs 12W E27 Light Bulb CREE LED Power Spot Light Lamp Energy Saving $48.01 Time Remaining: 3h 57m |
 Eu energy meter Watt Voltage Volt Meter Monitor Analyzer with power factor $17.98 Time Remaining: 19d 5h 43m Buy It Now for only: $17.98 Buy It Now |
 Wholesale 10Pcs E14 Light Bulb 12W Power SpotLight Lamp Energy Saving Cool White $46.32 Time Remaining: 3h 57m |
 Wholesale 10Pcs E14 3X3W Light Bulbs 9W Spot Light Lamp LED Power Energy Saving $39.43 Time Remaining: 3h 57m |
Powerthirst
 Antec VP-450 450 Watt Energy Star Certified Power Supply List Price: Sale Price: $36.99 You save: $11.96 (24%)  Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product Description450W power supply  |
 Power Crunch High Protein Energy Snack, Cookies & Creme, 1.4-Ounce Bars (Pack of 12) List Price: Sale Price: $9.00 You save: $16.08 (64%) Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionCreme Filled Wafer Cookie. Made with Proto Whey Protein; Glutamine enriched. Proto Whey is a revolutionary new form of dietary protein. It's Micro Peptides are designed exactly to specifications of human metabolism (dieting, muscle repair and growth, energy, and immune response)... |
 The Power Surge: Energy, Opportunity, and the Battle for America's Future List Price: Sale Price: $17.10 You save: $10.85 (39%) Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionThe United States is in the throes of two unfolding energy revolutions, and partisans-convinced that only their side holds the key to American prosperity, security, and safety-are battling over which one should prevail... |
 Belkin Conserve Socket F7C009q Energy-Saving Outlet List Price: Sale Price: $7.00 You save: $2.99 (30%) Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionBelkin Conserve Socket - Energy Saving Outlet (F7C009q).Makes your home safer by automatically shutting off space heaters, curling irons, coffee makers.Can be used throughout home for multiple devices including fans, cell phone chargers, lights, kitchen appliances, electric toothbrushes. |
 ALFAPARF Active Hair Power Energy Concentrate Women (6 X 0.33oz) List Price: Sale Price: $12.50 You save: $17.49 (58%) Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionAlfaparf Active Hair Power Energy Concentrate for WOMEN reawakens the metabolism of the hair bulb and helps combat hair follicle atrophy, activating the growing phase of the hair. Vitamin Nanospheres act as carriers of vitamin energy to promote a healthy scalp environment and rebalance hair condition... |
 Sony Cycle Energy BCG34HLD4KN Power Charger with 4 Pre-Charged 2000 mAh AA Batteries Sale Price: $21.99 Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionSony Power Charger's compact design with flip down plug and worldwide voltage allows for charging batteries anywhere. Can charge up to 4 AA or 4 AAA rechargeable Ni-MH batteries. Includes 4 AA Pre-charged, ready-to-use right out of the package batteries... |
 Intensati: Intention and Power - A High Energy Workout for Body, Mind & Soul List Price: Sale Price: $7.68 You save: $7.30 (49%) Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionPatricia Moreno has made several dance workout DVDs and also kickboxing and yoga. Intensati is very unique because not only do you get a physical workout but you use positive affirmations at the same time... |
 Ensupra Electricity Usage Monitor, Power Meter, Reduce Your Energy Costs List Price: Sale Price: $25.00 You save: $4.99 (17%) Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionPower Meter measures energy and cost of electric appliances, and help user reduce the power bill and carbon emissions. Connect this meter into your regular home 110V-120V AC power supply outlet and then, connect the electric appliances with the meter; it starts to work and shows you Watts taken by the appliance, records kWh (units of electricity) consumed over the time, shows how clean the electricity is by Power Factor, shows Co2 produced for this power and shows the cost to operate... |
 Black & Decker EM100B Energy Saver Series Power Monitor List Price: Sale Price: $73.95 You save: $26.04 (26%) Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionGo green and save money on energy costs with the Black & Decker EM100B Energy Saver Series Power Monitor. This compact, easy-to-install device lets you track the amount of electricity that your household uses--and the costs of that usage--in real time... |
 Smart Strip LCG4 Energy Saving Power Strip with Autoswitching Technology and Fax/Modem Surge Protection List Price: Sale Price: $29.80 You save: $9.20 (24%) Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionSmart Strip Power StripEven when they're off, today's electronics continue to draw electricity we pay for but don't use. This revolutionary Energy Saving Smart Strip LCG4 power strip prevents that waste... |
