Question

Suppose you are standing on the center of a merry-go-roundthat is at rest. You are holding a spinning bicycle wheel over yourhead so that its rotation axis is pointing upward. The wheel isrotating counterclockwise when observed from above.For this problem, neglect any air resistance or frictionbetween the merry-go-round and its foundation.Q.Suppose you now grab the edge of thewheel with your hand, stopping it from spinning.What happens to themerry-go-round?a. It remainsat rest.b. It begins torotate counterclockwise (as observed from above).c. It begins torotate clockwise (as observed from above).

Answer 1

b. It begins to rotate counterclockwise (as observed from above).

Step-by-step explanation:

When a person standing in the center of the merry-go-round carrying a uniformly rotating wheel which rotates in counter clock direction when observed from the top.

When the person tries to stop the rotating wheel while standing on the surface of the merry-go-round at the center then in accordance with the Newton's second law of motion there acts a force in the direction of momentum. So, the the merry go round starts to rotate in the same direction.