Question

A buoy in the harbor of San Juan, Puerto Rico, bobs up and down. The distance between the highest and lowest point down is 3 feet. It moves from its highest point down to its lowest point and back to its highest point every 8 secs.
A) Find the equation of the motion for the buoy assuming that it is at its maximum point at t=0.
B) Determine the height of the buoy at 3 secs.
C) Determine the height of the buoy at 12 secs.