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

A boy attempts to throw a ball over the roof of a barn 11m high with an initial velocity of vsub0=12m/s. Determine the angle theta, at which the ball must be thrown so that it reaches its maximum height, which is at the roof of the barn. also find x where the boy must stand to make a throw, if the ball is thrown 1m from the ground.

2. Relevant equations

x=vsub0*costheta*time

y=Vsub0sinetheta*time-1/2 gt^2

or if max height is given 11m maybe, h=vsub0^2sin^2theta / 2g

3. The attempt at a solution

if i use equation for max height I cant get the angle but im thinking of combining the vertical and horizontal comp of displacement if I could get some hints to solving the angle or maybe the total x distance, but im stuck with a time missing then made me confused....

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# Homework Help: Projectile Motion: A boy throw a ball above a barn roof

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