## Question

###### 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 speed $v$ varies with the height $h$ above the ground as :

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 speed $v$ varies with the height $h$ above the ground as :

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