SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

A pendulum consists of a wooden bob of mass  and of length . A bullet of mass  is fired towards the pendulum with a speed . The bullet emerges out of the bob with a speed  and the bob just completes motion along a vertical circle. Then  is

a)

b)

c)

d)


Question ID - 100206 :-

A pendulum consists of a wooden bob of mass  and of length . A bullet of mass  is fired towards the pendulum with a speed . The bullet emerges out of the bob with a speed  and the bob just completes motion along a vertical circle. Then  is

a)

b)

c)

d)

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

Applying the law of conservation of momentum,

or

To describe a vertical circle  should be So,

or



Next Question :

A ladder of length  and mass  is placed against a smooth vertical wall, but the dround is not smooth. Coefficient of friction between the ground and the ladder is . The angle  at which the ladder will stay in equilibrium is

a)

b)

c)

d)

None of these


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