Question

The blades of an aeroplane propeller are rotating at the rate of 600 revolutions per minute. Calculate its angular velocity.

CLASS - XI PHYSICS (Kinematics)

Answer 1

blades are rotating at the rate 600 rpm.
angle covered in 1 revolution = 2π
angle covered in 600 revolutions = 600×2π = 1200π
time taken = 1 minute = 60s

angular velocity = $\frac{1200 \pi }{60}$ = 20π rad/s

Answer 2

Answer:

Hope it helps

blades are rotating at the rate 600 rpm.

angle covered in 1 revolution = 2π

angle covered in 600 revolutions = 600×2π = 1200π

time taken = 1 minute = 60s

angular velocity = {1200×pi \60} = 20π rad/s