Q. A wheel rotates with a constant angular velocity of 300 rpm. The angle through which the wheel rotates in one second is
A) $\pi$ rad
B) 5 $\pi$ rad
C) 10 $\pi$ rad
D) 20 $\pi$ rad
Explanation
(c) Frequency of wheel, $v = \frac{300}{60} = 5$ rps. Angle described by wheel in one rotation $= 2\pi$ rad. Therefore, angle described by wheel in 1 s $= 2\pi \times 5$ rad $= 10\pi$ rad
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.