Posted by **Farah** on Saturday, November 20, 2010 at 1:30pm.

An oceanographer measured a set of sea waves during a storm and modelled the vertical displacement of waves in meters using the equation h(t)=0.6cos2t+0.8sint, where t is the time in seconds.

a) Determine the vertical displacement of the wave when the velocity is 0.8m/s

b) Determine the maximum velocity of the wave and when it occurs.

c) When does the wave first change from a hill to a trough? Explain.

Ans: I tried finding the part a) by first finding the derivative, then how do i go about simplifying it. how do i find the max velocity with cos and sin in the function?

## Answer This Question

## Related Questions

- Math - app of Sine and Cosine & thier Derivatives - An oceanographer measured a ...
- Math - app of sinusoial derivatives (help+check) - An oceanographer measured a ...
- Physics - The velocity of the transverse waves produced by an earthquake is 6.13...
- physic - The waves emitted from a source A is given by y1 = 6 sin π(20t – 0...
- Physics - Two displacement waves are added resulting in constructive interfernce...
- Calculus application of sin function - a horizontal position of the pendulum of ...
- Pre-Calculus - During a storm a ship is being tossed up and down by huge waves. ...
- Physics - A long straight horizontal bar vibrates in a ver tical direction with ...
- Algebra 1 high school - In deep water, the speed s (in meters per second) of a ...
- math, trigonometry, physics - Before a tidal wave the sea level usually drops ...

More Related Questions