A cannon that shoots projectiles at 100m/s must hit a target 400m away and 30m above the ground. What angle must the cannon point at in order to hit the target?(adsbygoogle = window.adsbygoogle || []).push({});

I have two functions:

x = V*cos(theta)*t, where V = initial velocity, and

y=V*sin(theta)*t - (g*t^2)/2 where g = gravity's acceleration

but i can't solve for theta.

can somebody help me?

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# Find angle of release

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