Whirl a rock at the end of a string and it follows a circular path.If the string breaks,the tendency of the rock is to
A)continue to follow a circular path.
B)follow a straight-line path.
C)increase its speed.
D)revolve in a smaller circle.

Question

Quizplus · Accepted Answer

If the string breaks, the rock would no longer be attached to a centripetal force that keeps it moving in a circular path. Therefore, the rock would continue to move in a straight line path due to its inertia.

Whirl a Rock at the End of a String and It