A ball of mass is tied to a long string and is whirled in a horizontal circle
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
A ball of mass 200g is tied to a 0.60m long string and is whirled in a horizontal circle. It completes 5 full revolutions in 2 seconds. At point Q on the circle the string breaks.
(i) Calculate the speed of the ball just before the string breaks.
(ii) State the direction in which the ball will start moving immediately after the break.
(iii) Describe the subsequent path of the ball in the presence of Earth’s gravity until it touches the ground. You may neglect air resistance.