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During a football match, a player kicks a ball from rest towards a goal, which is 12 metres from the ball. The ball is kicked with an initial velocity of 25 m/s at an angle of 17° above the horizontal.

Show that the time that it takes the ball to travel the horizontal distance of 12 metres is 0.502 seconds, correct to three significant figures.

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You must have posted it in physics stack exchange. –  Mr.ØØ7 Mar 22 '13 at 10:31
    
This seems like a typical pre-calculus word problem. There is no physics in it other than $d=vt$. I don't see a reason for migration to physics. –  robjohn Mar 22 '13 at 17:02
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closed as off topic by Ross Millikan, Dennis Gulko, Stefan Hansen, Henry T. Horton, Davide Giraudo Mar 22 '13 at 14:42

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1 Answer

The time reqiured to travel horizontal distance $d$ is equal to $$T=\frac{d}{ucos\theta}$$; We don't need to add acceleration due to gravity because that just effects the vertical motion but the horizontal motion is just with a constant velocity.

Now put the values and you get your answer!

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