JEE Main Physics question

Physics Systems of Particles and Rotational Motion JEE Main

A disc is rolling on an inclined plane. What is the ratio of its rotational KE to the total KE?

(A)1:3Correct
(B)3:1
(C)1:2
(D)2:1

Answer: (A)

Solution

, with (disc): , i.e. 1:3.

Question ID VK-158571