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thrill3rnit3
Gold Member
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Homework Statement
Hello. I'm doing problems out of Kleppner and Kolenkow and for some reason I'm stuck at one of them.
A boy stands A boy stands at the peak of a hill which slopes downward uniformly at angle [tex]\phi[/tex]. At what angle [tex]\theta[/tex] from the horizontal should he throw a rock so that it has the greatest range?
here's an image:
http://img42.imageshack.us/img42/4135/phys.gif
Homework Equations
equations of motion
The Attempt at a Solution
Here's the work I had on a sheet of paper:
http://img843.imageshack.us/img843/2717/physa.jpg
The last equation on it should have a 2 in front of the Vo^2/g, but after that I'm stuck.
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