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Osbourne_Cox
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1. A place kicker must kick a football from a point 35.0 m (about 38 yd) from the goal. As a result of the kick, the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 22.0 m/s at an angle of 52◦ to the horizontal. The acceleration of gravity is 9.81 m/s2 .
a) To determine if the ball clears the cross-bar, what is its height with respect to the crossbar when it reaches the plane of the crossbar?
b) To determine if the ball approaches the crossbar while still rising or while falling, what is its vertical velocity at the crossbar?
No clue! I haven't done physics in three years and simply don't remember where to begin! Please help! (:
a) To determine if the ball clears the cross-bar, what is its height with respect to the crossbar when it reaches the plane of the crossbar?
b) To determine if the ball approaches the crossbar while still rising or while falling, what is its vertical velocity at the crossbar?
Homework Equations
The Attempt at a Solution
No clue! I haven't done physics in three years and simply don't remember where to begin! Please help! (: