A car is moving on a circular track with a constant speed. If its radius is tripled, what happens to its period?
Q1. A car is moving on a circular track with a constant speed. If its radius is tripled, what happens to its period?
Answer: It is tripled
Explanation: Period (T) is given by 2πr/v. If r is tripled, T becomes (2π(3r))/v = 3 * (2πr/v), so it is tripled.