A disc is rolling the velocity of its centre of mass is `V_"cm"` then which one will be correct : -

Options

A. The velocity of highest point is `2V_(cm)` and point of contact is zero
B. The velocity of highest point is `V_(cm)` and point of contact is `V_(cm)`
C. The velocity of highest point is `2V_(cm)`and point of contact is `V_(cm)`
D. The velocity of highest point is `2V_(cm)` and point of contact is `2V_(cm)`

Answer

A

Explanation