Plz Explain

Asked by AdityaNanda | 19th Jan, 2009, 02:01: PM

Expert Answer:

a) tension does no work as it is acting along the radius of the circular arc that the pendulum can be assumed to follow.

b) the air resistance does negative work as it always acts opposite to the displacement of the bob of the pendulum.

c) the force of gravity does work equal to the change in kinetic energy of the swinging pendulum.

Answered by  | 20th Jan, 2009, 02:24: PM

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