A ferris wheel with a 180 foot diameter makes 2.5 revolutions per minute.
Find the linear speed (in feet per minute) of the ferris wheel seats.
Linear speed= v = s/t
Each revolution is 2π radians; the ferris wheel turns (2.5 revolutions/min)(2π rad/revolution)
=5π rad per minute
Linear speed = rθ/t= (90 * 5π rad) feet/1 minute=450π feet/minute