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Assume friction to be negligible in the roller coaster shown at right. If the roller coaster cart(mass = 25kg) starts at rest at point A,find:

Assume friction to be negligible in the roller coaster shown at right. If the roller coaster cart(mass = 25kg) starts at rest at point A,find: a. The speed at the bottom of hillA. b. The speed at the top of hill B.

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