Find the angular speed in radians per minute of a wheel of r

Find the angular speed in radians per minute of a wheel of radius 9 inches rotating at 2400 rpm. Approximate your answer to the nearest tenth.

Solution

Raddius = 9 inches

Speed = 2400 revolutions per minute

= 2400

1rev rotates through 2pi radians

So, Angular speed = 2400*2p *( rev/min)*( rad/rev) = 4800pi

= 15079.6 rad/min