an ocean grapher measured a set of waves during a storm and modelled the vertical displacement of waves using h(t)=0.6cos2t+0.8sint. Determine the vertical displacement of the wave when the velocity is 0m/s.
geez - enough already!
https://www.jiskha.com/questions/1796520/an-ocean-grapher-measured-a-set-of-waves-during-a-storm-and-modelled-the-vertical