# PHYSICSS.. someone help plz.

A football is kicked at 15 m/s with an angle of 35 degrees with the ground.

How long is it in the air?
How far will it land?

Can someone help plz... Thanks!

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1. The horizintal distance travelled t seconds following the kick is
X = 15 cos 35 * t
The vertical height is
Y = 15 sin 35 * t - (g/2) t^2

g = 9.8 m/s^2 is the acceleration of gravity

You should be familiar with these formulas.

Solve the Y equation for the time T when Y = 0. That will tell you how long the ball is in the air. Then use the X equation to find out how far it has travelled during that time T.

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posted by drwls

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