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saul85 [17]
1 year ago
10

a placekicker 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 20.4 m/s at an angle of 48.0° to the horizontal.
Physics
1 answer:
Alekssandra [29.7K]1 year ago
3 0

The ball will clear the crossbar since the maximum height it attained is greater than 3.05 m.

<h3>Time of motion of the ball</h3>

The time of motion of the ball is calculated as follows;

x = (v cosθ) t

36 = (20.4 cos48) t

36 = 13.65t

t = 2.64 seconds

<h3>Maximum height reached by the ball</h3>

h = (v sinθ)t - ¹/₂gt²

h = (20.4 sin48)(2.64) -  (0.5)(9.8)(2.64²)

h = 5.87 m

Thus, the ball will clear the crossbar since the maximum height it attained is greater than 3.05 m.

Learn more about maximum height here: brainly.com/question/12446886

#SPJ1

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