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

A football kicker can give the ball an initial speed of 25 m/s. what are the least and greatest angles of elevation at which he can kick the ball to score a field goal from a point 50m in front of the goalposts whose horizontal bar is 3.44m above the ground?

2. Relevant equations

I really don't know what to do

3. The attempt at a solution

I figured I could write

V_{0}tcosX=50

and

V_{0}tsinX-.5gt^{2}=3.44

Then I tried to find t in terms of X and got

t=50/(V_{0}cosX)

Then I plugged that in to the other equation and I got

50tanX-12250/cos^{2}X-2150=0

I thought then I could find the zeros and that would be my answer but it doesn't seem to be working... I can't figure out why. Maybe I totally missed the answer but either way I still need help lol. Thanks.

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# Homework Help: Projectile motion football kick problem

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