SOLUTION: the pendulum of a clock swings through a angle of 2.5 radians as its tip travels through an arc of 50cm. find the length of the pendulum in cm

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Question 421812: the pendulum of a clock swings through a angle of 2.5 radians as its tip travels through an arc of 50cm. find the length of the pendulum in cm
Answer by Gogonati(855) About Me  (Show Source):
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Denote the length of the arc L=50 cm and the angle +theta=2.5.
As we know L=r%2A%28theta%29, where r is the length of the pendulum.
r=L%2F%28theta%29
r=50%2F2.5

{r=20}
Answer: the length of pendulum is 20 cm.