A particle is moving in a circular path. If its radius is halved and speed is doubled, what happens to its centripetal acceleration?
Q1. A particle is moving in a circular path. If its radius is halved and speed is doubled, what happens to its centripetal acceleration?
Answer: It is increased 8 times
Explanation: Centripetal acceleration = v² / r, so doubling v and halving r increases it 8 times.