find the linear velocity of a point on a wheel if the wheel has a diameter of 27. what is the answer in terms of pi

Question

This is part of my trig. Quiz that my teacher let me correct.

Answer 1

Hi Ryan,

 

Linear velocity is the measure of how much distance the wheel has to move to complete one circular revolution.

 

Therefore, we are looking for what is the circumference of the circle.  The circumference formula for a circle is diameter x pi.

 

We are told that the diameter of the wheel is 27, so its linear velocity is 27pi.

 

Thanks for submitting this problem and glad to help.

 

God bless, Jordan.