A buoy oscillates in simple harmonic motion according to the motion of waves at sea. An observer notes that the buoy moves a total of 6 feet from its lowest point to its highest point. The buoy returns to its highest point every 15 seconds.

Question

A buoy oscillates in simple harmonic motion according to the motion of waves at sea. An observer notes that the buoy moves a total of 6 feet from its lowest point to its highest point. The buoy returns to its highest point every 15 seconds.
Amplitude: 6 feet 
Period: ???
Frequency: ???
Possible equation:???

John · Answer

Period: 2pi/15, or one oscillation every 15 minutes. Freq: 1/15 Equation: let d be the displacement then d = 6cos(2pi/15t)