Question

During rolling, the force of friction acts in the same direction as the direction of motion of the centre of mass of the body.

(a) True

(b) False

This question was posed to me during an online exam.

This is a very interesting question from Angular Momentum in portion System of Particles and Rotational Motion of Engineering Physics I

Answer 1

Correct answer is (a) True

To elaborate: When a body rolls, the force if the friction acts in the same direction as the direction of motion of the centre of mass of the body.