Question

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.

Answer 1

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

Time of motion of the ball

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

Maximum height reached by the ball

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