A place-kicker must kick a football from a point 360 m, Ask an Expert

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A place-kicker must kick a football from a point 36.0 m (about 40 yards) from the goal. Half the crowd hopes the ball will clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 21.4 m/s at an angle of 46.0° to the horizontal.

(a) By how much does the ball clear or fall short (vertically) of clearing the crossbar? (Enter a negative answer if it falls short.) m

(b) Does the ball approach the crossbar (and cross above or beneath it) while still rising or while falling? rising falling

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