Short Answer
A frictionless simple pendulum,with a small but dense 4.4-kg bob at the end and a length of 75 cm,is released from rest at an angle of 50° with the vertical.
(a)To what height above its lowest point does the bob swing on the other side?
(b)What is the speed of the bob at the bottom of the swing?
Correct Answer:
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(a)27 cm
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