The length of a simple pendulum is 0.77 m and the mass of theparticle (the "bob") at the end of the cable is 0.31 kg. Thependulum is pulled away from its equilibrium position by an angleof 6.5 ° and released from rest. Assume that friction can beneglected and that the resulting oscillatory motion is simpleharmonic motion.
(a) What is the angular frequencyof the motion?
(b) Using the position of the bobat its lowest point as the reference level, determine the totalmechanical energy of the pendulum as it swings back and forth.
(c) What is the bob's speed as it passes throughthe lowest point of the swing?