Using the diagram, v =0.620 m/s, h1= 0.300 m and h2=0.230 m. Calculate the car's speed at the top of hill a

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HOME > Physics > Using the diagram, v =0.620 m/s, h1= 0.300 m and h2=0.230 m. Calculate the car's speed at the top of hill a

Using the diagram, v =0.620 m/s, h1= 0.300 m and h2=0.230 m. Calculate the car's speed at the top of hill a

[From: ] [author: ] [Date: 11-05-09] [Hit: ]

its a test prep for my physics exam tommorow. thanks!The mass cancels,where h is the difference in height (0.3-0.vf = 1.......

heres the link: http://www.flickr.com/photos/62137592@N03/5700213813/
please help. its a test prep for my physics exam tommorow. thanks!

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Efinal = Einitial + Epotential
Efinal= 1/2 m vi^2 + mgh
1/2 m vf^2 = 1/2 m vi^2 + mgh

The mass cancels, and solving for vf (velocity final)
where h is the difference in height (0.3-0.23)
vf = SQRT( vi^2 + 2 g h) =
vf = 1.33 m/s

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