Question

A uniform solid disc of mass 1 kg and radius 1m is kept on a rough horizontal surface. Two forces of magnitude 2N and 4N have been applied on the disc as shown in the figure. Linear acceleration of the centre of mass of the disc is if there is no slipping.

(A) 4 m/s² 

(B) 2m/s² 

(C) 1 m/s² 

(D) zero 

Answer 1

Correct option (D) zero

Explanation:

Taking torque about contact point, τ = 4 × R – 2× 2R = 0, F_net = 0