A body is moving in a circular path. If its speed is doubled and radius is halved, what happens to its acceleration?
Q1. A body is moving in a circular path. If its speed is doubled and radius is halved, what happens to its acceleration?
Answer: It is increased 8 times
Explanation: a = v² / r. If v is doubled and r is halved, a becomes (2v)² / (r/2) = 8(v²/r), so it is increased 8 times.