First slide

The steps in collision

Question

Two perfectly elastic balls of same mass m are moving with velocities u₁ and u₂. They collide elastically n times. The kinetic energy of the system finally is

Moderate

A

$\large \frac{1}{2}\frac{m}{n}u_1^2$
B

$\large \frac{1}{2}\frac{m}{n}\left( {u_1^2 + u_2^2} \right)$
C

$\large \frac{1}{2}m\left( {u_1^2 + u_2^2} \right)$
D

$\large \frac{1}{2}mn\left( {u_1^2 + u_2^2} \right)$

Solution

In elastic collision there is no loss of KE. Therefore, initial KE equal to final KE

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App