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

A projectile is launched with a speed of 40 m/s at an angle of 60 degrees above the horizontal. Use conservation of energy to find the maximum height reached by the projectile during its flight.

2. Relevant equations

KEi+PEi=KEf+PEf

3. The attempt at a solution

i am not sure where vf would come from. Would it be just Vi*cos(60)?

I am not sure why that makes sense.

Does Vix=Vf?...and why?

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# Projectile Motion

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