After tying a string to a rock, you twirl the rock around above your head. If the string were to break, what path would the rock follow?
A) The rock will fall down immediately.
B) The rock will complete the circle before falling down.
C) The rock will go in a straight line before falling down.
D) The rock will fly upward.

Question

Quizplus · Accepted Answer

When the string breaks, the rock will follow a straight line tangent to the circle at the point of release due to inertia, as there is no longer a centripetal force acting on it.

After Tying a String to a Rock, You Twirl the Rock