Question

The tip of a pendulum moves through an angle of 0.38 radians. If the radius of the pendulum is 25

centimeters, then which of the following is the length of the arc the tip moves through?
(1) 4.7
(3) 7.8
(2) 6.1
(4) 9.5​

Answer 1

The length of arc 'l' = 9.5

Explanation:

Explanation:-

Given radius of the pendulum r = 25

The tip of a pendulum moves through an angle of 0.38 radians

θ = 0.38 radians

The length of arc 'l' = rθ

'l' = (25)(0.38)

The length of arc 'l' = 9.5