A wheel is rotating at 30 rev/min. The angular velocity of the wheel is A) 2π² rad/s. B) 2π rad/s. C) 2 rad/s. D) π/2 rad/s. E) π rad/s.

Question

Quizplus · Accepted Answer

Angular velocity (ω) is given by:

ω = 2πn

where n is the number of revolutions per unit time.

Substituting n = 30 rev/min,

ω = 2π (30 rev/min)

= 60π rad/min

= π rad/s

Therefore, the angular velocity of the wheel is π rad/s. The correct answer is E.

A Wheel Is Rotating at 30 Rev/min