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During the padding of a bicycle, the force of friction exerted by the ground on the two wheels is such that it acts

options:

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 backward direction on the rear 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.
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Best answer

The  correct option is a) 

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

Explaination::

In the backward direction on the front wheel and in the forward direction on the rear wheel because during padding, its rear wheel moves in forward direction but the point where wheel touches the ground is in backward direction so friction will be in the forward direction so friction will be in the forward direction in the rear wheel but as the front wheel is not getting any torque so it will be stationary and the forces that causes the rotation is only frictional force.

 

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