Question

When speed of a bicycle is increasing on a horizontal road, the force of friction exerted by the ground on the wheels is

• A. In the forward direction on the front wheel and in the backward direction on the back wheel
• B. In the backward direction on the front wheel and in the forward direction on the back wheel
• C. In the backward direction on both the wheels
• D. In the forward direction on both the wheels

Answer 1

The correct option is B In the backward direction on the front wheel and in the forward direction on the back wheel

As below diagram suggests when a bicycle is accelerated, its wheels experiences friction in different direction.

Front wheel experiences friction in backward direction at the point of contact as it's not the driving wheel.

Back wheel will experience a friction directing toward motion as it’s a driving wheel.