MAC 1105 Lecture : Q2

Angular Speed and Linear Speed A potter’s wheel with radius 8 in. spins at 150 rpm. Find the angular and linear speeds of a point on the rim of the wheel.

Truck wheels A truck with 48-in.-diameter wheels is traveling at 50 mi/h.

Find the angular speed of the wheels in rad/min.

: bicycle wheel The sprockets and chain of a bicycle are shown in the figure. The pedal sprocket has a radius of 4 in., the wheel sprocket a radius of 2 in., and the wheel a radius of 13 in. The cyclist pedals at 40 rpm.

Find the angular speed of the wheel sprocket.