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

When a bicycle is in motion, the force of friction exerted by the ground on the two wheels in such that it acts

a)

In the backward direction on the front wheel and in the forward direction on the rear wheel

b)

In the forward direction on the front wheel and in the background on the wheel

c)

In the backward direction on both the front and the rear wheels

d)

In the forward direction on both the front and the rear wheels


Question ID - 100205 :-

When a bicycle is in motion, the force of friction exerted by the ground on the two wheels in such that it acts

a)

In the backward direction on the front wheel and in the forward direction on the rear wheel

b)

In the forward direction on the front wheel and in the background on the wheel

c)

In the backward direction on both the front and the rear wheels

d)

In the forward direction on both the front and the rear wheels

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

When the cycle is not pedaled but it is motion (due to previous effort) the wheels move in the direction such that the centre of mass of the wheel moves forward. Rolling friction will act in the opposite direction to the relative motion of the centre of mass of the body with respect to the ground. Therefore the rolling friction will act in the backward direction in both the wheels. The sliding friction will act in the forward direction of the rear wheel during pedaling



Next Question :

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)


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