find horizontal and vertical launch components
use horizontal component to find flight time (t) to crossbar
use vertical component to find height of football at time (t)
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 24.0
m/s at an angle of 51◦
to the horizontal.
To determine if the ball clears the crossbar,
what is its height with respect to the crossbar
when it reaches the plane of the crossbar?
The acceleration of gravity is 9.81 m/s
2
.
Answer in units of m.
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