Physics-
General
Easy
Question
A ball is dropped vertically from a height 
above the ground. It hits the ground and bounces up vertically to a height 
. Neglecting subsequent motion and air resistance, its velocity 
varies with the height 
above the ground is
- None
The correct answer is:
For the given condition initial height 
and velocity of the ball is zero. When the ball moves downward its velocity increases and it will be maximum when the ball hits the ground & just after the collision it becomes half and in opposite direction. As the ball moves upward its velocity again decreases and becomes zero at height . This explanation match with graph (a)
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