Question

a body performing uniform circular motion completed 140 revolutions in a second. its angular speed is

Answer 1

Answer:-

Time taken to complete 1 revolution = 1/140 sec

Angular velocity =

ω = 2∏ / T

= 2 * 22 / 7 * 140

= 880 rad/s

Answer:》》》》》》

1.880 rad/s

Answer 2

Answer:

Angular Speed, ω= 880 rad/s

Explanation:

Given;-

                  Speed = Constant

                    n = 140 revolutions/ second

                  f = 140 Hz   [where f= frequency]

Since;-

                  ω = 2π f

Hence;-

                  ω = 2 × 22/7 × 140

                  ω = 2 × 22 × 20

                  ω = 880 rad/s

Therefore, its angular speed is 880 rad/s.

Hope it helps! ;-))