Compute what is the total mechanical energy of the system

Reference no: EM13534067

A pendulum consists of a 4.0 kg stone swinging on a 4.4 m string of negligible mass. The stone has a speed of 7.5 m/s when it passes its lowest point.

(a) What is the speed when the string is at 60 ? 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: EM13534067

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