Question

A sphere is moving towards positive x axis with a velocity Vc and rotates anticlockwise with angular speed w such that Vc = wR/3.Speed of bottom point of sphere is​

Answer 1

Explanation:

if a body is performing rolling then the velocity of any point of the body with respect to the surface is given by

V= Vcm + w×R.

Answer 2

Answer:

4ωR/3.

Explanation:

From the question we get that the sphere is moving in the positive x direction with the speed of the center of the sphere as ωR/3 where ω is the angular velocity where the sphere is rotating in the anticlockwise direction.

So, the velocity at the bottom of the sphere will be in relative to the velocity of the center part of the sphere. So, the velocity will be ω + ωR/3 which on solving we will get that 4ωR/3.