#### burgerandcheese

##### Junior Member

- Joined
- Jul 2, 2018

- Messages
- 73

I know how to to the expression, I got dh/dt = -π/2 sin( π/6 * t)

(By the way, is that an expression or an equation?)

So for the second part of the question when finding the time when it rises the fastest how come we can't set dh/dt = 0 and solve for t? I did it like that and I got my answer wrong