Gujarati
13.Oscillations
easy

A simple pendulum consisting of a ball of mass $m$ tied to a thread of length $l$ is made to swing on a circular arc of angle $\theta $ in a vertical plane. At the end of this arc, another ball of mass $m$ is placed at rest. The momentum transferred to this ball at rest by the swinging ball is

A

Zero

B

$m\theta \sqrt {\frac{g}{l}} $

C

$\frac{{m\theta }}{l}\sqrt {\frac{l}{g}} $

D

$\frac{m}{l}2\pi \sqrt {\frac{l}{g}} $

Solution

a) No momentum will be transferred because, at extreme position the velocity of bob is zero.

Standard 11
Physics

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