Question

7.13 q: a ball attached to a string is moved at constant speed in a horizontal circular path. a target is located near the path of the ball as shown in the diagram. at which point along the balls path should the string be released, if the ball is to hit the target? (a) a (b) b (c) c (d) d

Explanation:

Step1: Analyze the motion of the ball

When the string is released, the ball will move in a straight - line path tangent to the circular path at the point of release due to the principle of inertia (Newton's first law).

Step2: Determine the tangent point

Looking at the circular path, point B is the point where the tangent to the circular path will lead the ball to the target.

Answer:

B.