What is the total mechanical energy of the system

Reference no: EM13492715

A pendulum consists of a 3.1 kg stone swinging on a 4.2 m string of negligible mass. The stone has a speed of 7.9 m/s when it passes its lowest point.

(a) What is the speed when the string is at 50 ? to the vertical?

(b) What is the greatest angle with the vertical that the string will reach during the stone's motion?

(c) If the potential energy of the pendulum-Earth system is taken to be zero at the stone's lowest point, what is the total mechanical energy of the system?

Reference no: EM13492715

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