A ball is dropped vertically from `a` height `d` above the ground . It hits the ground and bounces up vertically to a height ` (d)//(2). Neglecting subsequent motion and air resistance , its velocity `v` varies with the height `h` above the ground asA. B. C. D.

A ball is dropped vertically from `a` height `d` above the ground . It

1.	A ball is dropped vertically from `a` height `d` above the ground . It hits the ground and bounces up vertically to a height ` (d)//(2). Neglecting subsequent motion and air resistance , its velocity `v` varies with the height `h` above the ground asA. B. C. D.
Answer» Correct Answer - A For downward journey : `v^(2) = u^(2) + 2gh` Therefore, the velocity will increase in downward (negative) direction. The shape of graph will be parabolic. For upward journey : `v^(2) = u^(2) - 2gh` therefore, the velocity of the ball will become zero at the highest point. Again, the graph will be parabolic. option (a) is correct

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A ball is dropped vertically from `a` height `d` above the ground . It hits the ground and bounces up vertically to a height ` (d)//(2). Neglecting subsequent motion and air resistance , its velocity `v` varies with the height `h` above the ground asA. B. C. D.

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