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A simple pendulum has a length of 85 cm and a bob of mass 1.1 kg....

A simple pendulum has a length of 85 cm and a bob of mass 1.1 kg. When the string is at 28 degrees to the vertical. the bob has a speed of 2.5 m/s.

a) What is the maximum speed of the bob?

b) What is the maximum angle to the vertical? degrees

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