Question

Q.2
A body rotates at 300 rotations per minute.
The value in radian of the angle described
1 sec is
(A) 5
(B) 5pi
(C) 10
(D) 10pi​

Answer 1

Answer:

Correct option is

D

10π

Angular velocity, ω=300 rpm

⟹ω=60300=5 rps

⟹ω=5×2π

⟹ω=10π rad/s

Angle, θ=ωt

⟹θ=ωt

⟹θ=10π×1

⟹θ=10π radians