A heavy ball with a weight of 130 N is hung from the ceiling of a lecture hall on a 4.1-m-long rope.
A heavy ball with a weight of 130 N is hung from the ceiling of a lecture hall on a 4.1-m-long rope. The ball is
pulled to one side and released to swing as a pendulum, reaching a speed of 5.8 m/s as it passes through the lowest point.
What is the tension in the rope at that point?