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when the bob of simple pendulam swings , the work done by tension in the string

when the bob of simple pendulam swings , the work done by tension in the string

Grade:12th pass

1 Answers

Saurabh Kumar
askIITians Faculty 2411 Points
7 years ago
No. Work is force times displacement. Even though the pendulum moves, it has zero displacement in the direction of the force imparted by the string.
T and the radial component of the Weight force cancel out. The only force acting on the system is the tangential (real word?) component of the Weight force:

Fnet = -mgsin(theta)

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