A ferris wheel has a radius of 160 feet rotates at a constant 1.57 revolutions per minute. The lowest point in the wheel is 24 feet off the ground. From the point where you start the ride, it takes you 21 seconds to reach the highest point on the wheel.

a) How far off the ground will you be when the ride starts?

b) How far off the ground will you be after 5.6 minutes?