- #1
Cherrybawls
- 18
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Homework Statement
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?
Homework Equations
I really don't know what to do
The Attempt at a Solution
I figured I could write
V0tcosX=50
and
V0tsinX-.5gt2=3.44
Then I tried to find t in terms of X and got
t=50/(V0cosX)
Then I plugged that into the other equation and I got
50tanX-12250/cos2X-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.