A ball is released at the point x =2m on an inclined plane with a nonzero initia

Question

A ball is released at the point x=2m on an inclined plane with a nonzero initial velocity. After being released, the ball moves with constant acceleration. The acceleration and initial velocity of the ball are described by one of the following four cases: case 1, a>0,v0>0 ; case 2, a>0,v0<0 ; case 3, a<0,v0>0 ; case 4, a<0,v0<0

Part A) In which of these cases will the ball definitely pass x=0 at some later time?

Part B) In which of these cases is more information needed to determine whether the ball will cross x=0

Explanation / Answer

A) Case 4 and case 3 since for both of them initial velocity is very high

B)Case 2 as for this initial velocity is zero

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