A stone tied to a string is made to revolve in a horizontal circle of radius 4m with an angular speed of 2 rad per sec. With what tangential velocity will the stone move off the circle if the string is cut?
-
A.
16.0 ms-1 -
B.
8.0 ms-1 -
C.
6.0 ms-1 -
D.
2.0 ms-1 -
E.
0.5 ms-1
Correct Answer: Option B
Explanation
V = wr = 2×4 = 8.0 ms-1