- #1
waldvocm
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A kicker must kick the football from a point 29.4m from the goal and clear a bar 3.00m above the ground. The ball leaves the ground with a speed of 20.0m/s at an angle of 53.0 degrees above the horizontal.
a) By how much does the ball clear, or fall short of the cross bar?
I used the equation R=vi^2 sin2(theta)/g to see how far the football would travel.
r+19.6 So the ball wouldn't even make it to the goal post. Correct?
b) When it gets to the cross bar, what is the vertical component of the ball's velocity?
This question makes me think my answer to a) is wrong because the x component would be zero. Correct?
a) By how much does the ball clear, or fall short of the cross bar?
I used the equation R=vi^2 sin2(theta)/g to see how far the football would travel.
r+19.6 So the ball wouldn't even make it to the goal post. Correct?
b) When it gets to the cross bar, what is the vertical component of the ball's velocity?
This question makes me think my answer to a) is wrong because the x component would be zero. Correct?