The instantaneous centre of rotation of a rigid thin disc rolling on a plane rigid surface is located at

The point on the circumference situated vertically opposite to the contact point.

An infinite distance on the plane surface.

The instantaneous centre of rotation of a rigid thin disc rolling on a

1.	The instantaneous centre of rotation of a rigid thin disc rolling on a plane rigid surface is located at
A.	The centre of the disc.
B.	An infinite distance on the plane surface.
C.	The point of contact.
D.	The point on the circumference situated vertically opposite to the contact point.
Answer» D. The point on the circumference situated vertically opposite to the contact point.