Question
Physics Question on Friction
A bicycle is in motion. The frictional force exerted by the ground on the two wheels acts
A
backwards on the front wheel and forwards on the rear wheel
B
forwards on the front wheel and backwards on the rear wheel
C
backwards on both the wheel
D
forwards on both the wheels
Answer
backwards on the front wheel and forwards on the rear wheel
Explanation
Solution
For bicycle to be in motion paddling a necessary. Therefore, a force will always act on it. Now, at the point of contact of rear wheel and earth, the direction of force applied will be backward and so the direction of friction will be forward on the rear wheel whereas direction at the front wheel will be backward