When a bicycle is in motion, 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

Answer

A

Explanation

Engine rotates the rear wheels. Friction acts on rear wheels is forward direction to prevent slipping, which moves the car.
When the front wheels move forward, friction acts backwards on front wheel to prevent slipping which results in rotational of front wheels.
As the car accelerates forward, the forward friction on rear wheels is greater than backward friction on front wheels.