Practicing Success
What is the speed of a point of sphere in contact with the plank, if the sphere is in pure rolling motion in the given diagram ? Consider the velocity of the plank to be positive. |
-v +v 0 -2v |
+v |
There should be no slipping at the contact surface for pure rolling. Thus, the speed of the point of sphere in contact with the plank should also be v in the same direction. |