Question

A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top on an incline and released. The friction coefficients between the objects and the incline are same and not sufficient to allow pure rolling. Least time will be taken in reaching the bottom by
(a) the solid sphere
(b) the hollow sphere
(c) the disc
(d) all will take same time.

Answer 1

Answer:

solid sphere

Explanation:

more the inertia lesser the acceleration.as sphere is having lowest inertia that means its acc. is maximum thus it will reach first