Consider a double radius object and a block being pulled across a horizontal sur

Question

Consider a double radius object and a block being pulled across a horizontal surface by an nonzero applied force as shown. The double radius object rolls without slipping. Friction acts in both cases. By adjusting the magnitude of the force, is it possible to have the object move with a constant nonzero velocity in each case?

Consider a double radius object and a block being pulled across a horizontal surface by an nonzero applied force as shown. The double radius object rolls without slipping. Friction acts in both cases. By adjusting the magnitude of the force, is it possible to have the object move with a constant nonzero velocity in each case? (j) no (ii) yes (i) yes (ii) yes (i) no (ii) no There is not enough information to tell. (i) yes (ii) no

Explanation / Answer

In both the cases, the object can be made to move with constant speed (but not constant velocity).

It is because the direction of motion of every point on the rolling wheel would be having different direction of motion (Due to its circular shape).

However in the case of moving block on a rigid surface, the direction of motion is uniform.

Thus, first option is correct.

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