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salqmander

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- Homework Statement
- A soccer player is practicing their kick on a field. Initially at rest, an 0.8 kilogram ball is kicked directly toward a fence from a distance 25 meters away, as shown above. The ball's velocity as it leaves the kicker's foot is 19 m/s at an angle of 30 degrees above the horizontal. The top of the fence field is 2.5 meters high. The kicker's foot is in contact with the ball for 0.05 seconds. While in flight, the ball doesn't hit any other object, and air resistance is negligible.

Determine whether the ball will hit the fence. If it will, how high up the fence will it hit? If not, how far above the fence will it reach?

- Relevant Equations
- d = vt + .5at^2

initial velocity y component is (cos30) * 20.

t = 25m / ((cos30) * 20)m/s = 1.45 seconds

d = vt + .5at^2

v= 20sin30

v= 10 , d= 10(1.45s) + .5(-9.8m/s^s)(1.45s)^2

d=4.2m

4.2-2.5 = +1.7m, so the ball will not hit the fence

I need confirmation please

t = 25m / ((cos30) * 20)m/s = 1.45 seconds

d = vt + .5at^2

v= 20sin30

v= 10 , d= 10(1.45s) + .5(-9.8m/s^s)(1.45s)^2

d=4.2m

4.2-2.5 = +1.7m, so the ball will not hit the fence

I need confirmation please

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