a football is kicked at 37 degrees to the horizontal at 20m/s from the players hand at 1m from the ground. how far did the football travel before hitting the ground?
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Parth (parthkohli):
Oh, hello again.
OpenStudy (rane):
hello!
OpenStudy (anonymous):
ll let the level 99 parth handle this one!
OpenStudy (rane):
thats how i did it:
i found the x and y component velocity then i found the time and then the s(X)
Parth (parthkohli):
We'll get the answer by looking at the vertical displacement. Let's say that the vertical displacement below the hand is negative and above the hand is positive.
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OpenStudy (rane):
we know the vertical displacement
its 1m
Parth (parthkohli):
-1 metres...
OpenStudy (rane):
y -1?
Parth (parthkohli):
|dw:1393255372457:dw|
OpenStudy (rane):
oh ok
but we don't really consider that in projectile, never have been though
only if its acceleration
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Parth (parthkohli):
And we assume that the displacement below the hands is 1 meter.