A cannon fires a ball at 1000m/s. It needs to hit a target 2000m away horizontally and 800m away vertically. What angle should the cannon be fired at?(adsbygoogle = window.adsbygoogle || []).push({});

I used the equation h=v^2*sinx^2/[2g]

800=1000^2 * sinX^2 / [2(9.8)]

however, I gt 7.2 after I crunch out the numbers.

The answer in to book says about 22 degrees.

what am I doing wrong?

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# Homework Help: Firing cannon

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