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PhysicsKinematics1-DMedium2 minPYQ_2012
PhysicsMediumsingle choice

A ball is dropped vertically downwards from a height above the ground. It hits the ground inelastically and bounces up vertically. Neglecting subsequent motion and air resistance, which of the following graph represents variation between speed and height correctly?

Question diagram: A ball is dropped vertically downwards from a height h above

Options:

Answer:
D
Solution:

When a ball hits the ground vertically then some of its energy is lost due to which it bounces back to lesser height with less velocity. The energy of the ball keep on decreasing with time and finally it become zero. Due to this variation of velocity with height can be represented as follows :

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:1-D
2mℹ️ Source: PYQ_2012

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