posted by javane .
An automobile wheel with a 9.00-cm radius and the radius to the rim is 7cm, as shown below, rotates at 2.50 rad/s. How fast does a point 6.50 cm from the center travel?
The wheel and rim radius do not matter, and are just there to confuse you. Multiply 6.50 cm/s by the angular velocity, 2.50 rad/s.
The answer will be in cm/s.