First slide

Collisions

Question

100 g of a iron ball having velocity 10 m/s collides with a wall at an angle $30^{o}$ and rebounds with the same angle. If the period of contact between the ball and wall is 0.1 second, then the force experienced by the ball is

Moderate

A

100 N
B

10 N
C

0.1 N
D

1.0 N

Solution

F = Rate of change in momentum
$= \frac{2 mv sinθ}{t}$
$= \frac{2 \times 10^{- 1} \times 10 \sin 30 °}{0 .1}$
$∴ F = 10 N$

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