Asked by Jake

A football player is running at a constant speed in a straight line up the field at an angle of 15o to the sideline. The coach notices that it takes the player 4.0 s to get from the 25 m line to the goal line. How fast is the player running?

Answers

Answered by oobleck
distance run = d and we have
25/d = cos15°
so speed = (25/cos15°)m / 4.0s = 25/(4 cos15°) m/s

Must be European football, since in America we use yards, not meters.
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