A body is moving in a circular path. If its radius is halved, what happens to its centripetal acceleration?
Q1. A body is moving in a circular path. If its radius is halved, what happens to its centripetal acceleration?
Answer: Doubled
Explanation: Centripetal acceleration is inversely proportional to r, a = v² / r, so halving r doubles a if v remains constant, but generally v changes.