Suppose a wheel travels in a straight line. This wheel has a diameter of 35 cm and is rotating at 20 revolutions per minute. It's given that the angular velocity of the wheel is 2π / 3. To the nearest centimetre, how far will it travel in 50 s?
Looking at the answers (#10.b) they multiplied the rate of revolutions per minute with 35 cm and π. Why?
