Homework Help: Physics

Posted by Anonymous on Tuesday, October 19, 2010 at 10:36pm.

A cannon shoots a shell at 42 degrees and at a velocity of 3000 m/s. How far does the shell travel in the x-direction?

Physics - drwls, Wednesday, October 20, 2010 at 1:41am
(V^2/g)sin 84 = ___

The angle gets doubled in the formula becasue of the identity
sinx cosx = sin (2x).

Try deriving the formula sometime.

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