If a rigid body rolls on a surface without slipping, then:

Options

A. linear speed is maximum at the highest point but minimum at the point of contact
B. linear speed is minimum at highest point but maximum at the point of contact
C. linear speed is same at all points of the rigid body
D. angular speed is different at different points of a rigid body

Answer

A

Explanation

In case of rolling without slipping all points of a rigid body have same angular speed but differnent linear speepd. The linear speed is maximum `(=2v)` at the highest point `H`, while minimum for the lowest point `(=zero)L`. This all clearly follows from the given figure.