A 5 kg mass is attached to a string and rotated in a horizontal circle of radius 2 m at 4 m/s. What is the tension?
Q1. A 5 kg mass is attached to a string and rotated in a horizontal circle of radius 2 m at 4 m/s. What is the tension?
Answer: 40 N
Explanation: Tension = (m * v²) / r = (5 * 4²) / 2 = 40 N, using the formula for centripetal force.