At the beginning of a roller coaster ride the car is staionary at the top of a 30m high hill and then begins to fall. Neglect any resistive forces. Calculate the speed of the car when it reaches the top of the second hill on the roller coaster. The second hill has abheight of 12m

asked by Maddi

8 years ago

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1 answer

Initial Energy=final PE + final KE
mg*30=mg*12+1/2 mv^2

calculate v.

answered by bobpursley

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Question

At the beginning of a roller coaster ride the car is staionary at the top of a 30m high hill and then begins to fall. Neglect any resistive forces. Calculate the speed of the car when it reaches the top of the second hill on the roller coaster. The second hill has abheight of 12m

1 answer

Initial Energy=final PE + final KE
mg*30=mg*12+1/2 mv^2

calculate v.

bobpursley · Answer

Initial Energy=final PE + final KE mg*30=mg*12+1/2 mv^2 calculate v.