Find the angle in radian through which a pendulum swings if its length is 75cm and the tip describes an arc of length 30cm.
Asked by kalidas | 10th Jun, 2010, 08:28: PM
We know that the radius times the angles described (in radians) is equal to the length of the arc, that is
Hence, the angle is 0.4 radians.
Answered by | 14th Jul, 2010, 03:23: PM
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