(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

[PLAIN]http://img23.imageshack.us/img23/4554/physicshomework.png [Broken]

2. Relevant equations

3. The attempt at a solution

I have the right answer because it is obvious, but I wanted to practice working this out regardless, and I have something slightly different for hmax.

First, I found the y-component of velocity to be:

[itex]V_{o}sin\theta_{o} - 9.8t[/itex]

It follows that at the highest point, that this is equal to 0. So I set it equal to 0 and solved for t.

[itex]t = \frac{V_{o}sin\theta_{o}}{9.8}[/itex]

Integrating my y velocity gives y position:

[itex]y(t) = (V_{o}sin\theta_{o})t - 4.9t^{2}[/itex]

And solving for our time gives me:

[itex]h_{max} = V_{o}sin\theta_{o}(\frac{V_{o}sin\theta_{o}}{9.8}) - 4.9(\frac{V_{o}sin\theta_{o}}{9.8})^{2}[/itex]

Where did I go wrong?

Thanks!

EDIT nevermind! They are the same, just had to do some algebra.

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# Homework Help: Conceptual problem with projectile motion

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