A pendulum swings through an angle of 30° and describes an arc 8.8 c

1.	A pendulum swings through an angle of 30° and describes an arc 8.8 cm in length. Find the length of the pendulum.
Answer» A pendulum swings through an angle of 30^0 and describes an arc 8.8 cm in length. Length of the pendulum = Radius of sector of the circle Arc length = 8.8 θ/360 (2πr) = 8.8 30/360 x 2 x 22/7 x r = 8.8 r = 16.8 Therefore, the length of the pendulum is 16.8 cm.

A pendulum swings through an angle of 30° and describes an arc 8.8 cm in length. Find the length of the pendulum.

Answer»

A pendulum swings through an angle of 30^0 and describes an arc 8.8 cm in length.

Length of the pendulum = Radius of sector of the circle

Arc length = 8.8

θ/360 (2πr) = 8.8

30/360 x 2 x 22/7 x r = 8.8

r = 16.8

Therefore, the length of the pendulum is 16.8 cm.