Question

A wheel of radius 25 ft. is rotating 13 RPM counterclockwise. Considering a point on the rim of the rotating wheel, what is the angular speed ω in rad/sec and the linear speed v in ft/sec?

Answer 1

Hints:
1 RPM=1 rotation / minute = 1*\(\pi\) radians / 60 sec. = \(\pi/60\) rad/sec.
Linear speed at the rim is the tangential speed, given by v=r\(\omega\), where
r=radius, and \(\omega\)=angular velocity.