Physics - Center of Mass Question with Solution | TestHub

PhysicsCenter of MassCollisionEasy2 minPYQ_2020

PhysicsEasynumerical

A rubber ball is dropped from a height of $5 m$ on a plane. It bounces back to a height of $1.8 m$ . Find the coefficient of the restitution for the collision.

Answer:

0.60

Solution:

If the ball is dropped from height $h$ and bounces back to height $h_{1}$

$h_{1} = e^{2} h$

$\Rightarrow e = \sqrt{\frac{h_{1}}{h}}$

$= \sqrt{\frac{1.8}{5}} = 0.6$

Stream:JEESubject:PhysicsTopic:Center of MassSubtopic:Collision

⏱ 2mℹ️ Source: PYQ_2020

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