A cyclist is moving in a circular path with a constant speed. What is the work done by the centripetal force?
Q1. A cyclist is moving in a circular path with a constant speed. What is the work done by the centripetal force?
Answer: Zero
Explanation: Centripetal force is perpendicular to the direction of motion, so the work done is zero, as W = F * d * cos(90°) = 0.