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

at 1/2 of its maximum height, the speed of a projectile is 3/4 of its initial speed. what was its launch angle?(ignore any effects due to air resistance.)

2. Relevant equations

3. The attempt at a solution

I don't even know where to begin.

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# Find the launch angle

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