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A football kicker can give the ball an initial speed of 27 m/s. What are the...

A football kicker can give the ball an initial speed of 27 m/s. What are the (a) least and (b) greatest elevation angles at which he can kick the ball to score a field goal from a point 47 m in front of goalposts whose horizontal bar is 3.44 m above the ground?

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