I swing a ball around my head at constant speed in a circle with circumference 3 m. What is the work done on the ball by the 10 N tension force in the string during one revolution of the ball

The work done on the ball by the tension force is 0 J.

Explanation:

The work can be calculated as follows:

Where:

F: is the tension force = 10 N

d: is the displacement = ball's circumference = 3 m

θ: is the angle between the force and the distance = 90°

Hence, the work is:

Since the tension force and the displacement vector are orthogonal, the work done on the ball is zero.

Therefore, the work done on the ball by the tension force is 0 J.

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