A simple pendulum (a mass swinging at the end of a string) wings back and forth in a circular arc. What is the direction of the acceleration of the mass when it is at the ends of the swing? At the midpoint? In each case, explain how you obtain your answer.

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A simple pendulum (a mass swinging at the end of a string)
swings back and forth in a circular arc. What is the direction of the
acceleration of the mass when it is at the ends of the swing? At the
midpoint? In each case, explain how you obtain your answer.
Transcribed Image Text:A simple pendulum (a mass swinging at the end of a string) swings back and forth in a circular arc. What is the direction of the acceleration of the mass when it is at the ends of the swing? At the midpoint? In each case, explain how you obtain your answer.
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