Question

a pendulum swings through an angle of 30 degree and describes an Arc of 8.8 CM in length then find the length of Pendulum please​

Answer 1

Answer:

Step-by-step explanation:

Let length of the pendulum be 'l'cm.

Length of the arc = 8.8 cm

=> ¢πl/180° = 8.8 cm

=> 30° × π × l / 180° = 8.8 cm

=> πl = 8.8 × 6

=> 22/7 × l = 52.8 cm

=> l = 52.6 × 7 / 22 cm = 16.8 cm

Therefore, l = 16.8 cm

Answer 2

Solution:-

Given:-

Let the length of the Pendulum be "x" cm.

Angle = 30°

Length of an arc = 8.8cm

Now,

Length of Arc = 8.8 cm

=> (30° × π× x)/180° = 8.8

=> π × x = 8.8 × 180°/30°

=> π × x = 8.8 × 6

=> x = (8.8×6×7)/22

=> x = 16.8cm

Hence,

length of Pendulum is 16.8cm.