Question

A ship at a harbor floats up and down due to waves. The function, h(t) = 15sin(60t), represents the change in height, in centimetres, that the ship floats up and down from a reference point, where t is the time in seconds. Explain how concepts can be used to prove that at t=10.5s, the ship is at its lowest height. No calculations are required

Answer 1

sin is minimum 3/4 of the way through a period.