Question

A solid sphere rolling on a rough horizontal surface. Acceleration of contact point is zero.
A solid sphere can roll on the smooth surface.
A. Statement I is True, Statement II is True, Statement ll is a correct explanation for Statement I.
B. Statement I is True, Statement II is True, Statement II is NOT a correct explanation for Statement I
C. Statement I is True, Statement II is False.
D. Statement I is False, Statement II is True.

Answer 1

Correct Answer - D

During the motion of rolling there is radial acceleration towards the centre. Hence the contact point moves vertically upwards.