In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0800 s, during which time it experiences an acceleration of 229 m/s2. The ball is launched at an angle of 52.3 ° above the ground. Determine the (a) horizontal and (b) vertical components of the launch velocity.

Question

Physics

Enrique Shah

22 July, 21:30

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0800 s, during which time it experiences an acceleration of 229 m/s2. The ball is launched at an angle of 52.3 ° above the ground. Determine the (a) horizontal and (b) vertical components of the launch velocity.

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Sunshine · Answer 1

The initial velocity of the ball is 0. Applying:

v = u + at

v = 0 + 229 x 0.08

v = 18.3 m/s

a)

Vx = Vcos (∅)

Vx = 18.3cos (52.3)

Vx = 11.2 m/s

b)

Vy = Vsin (∅)

Vy = 18.3sin (52.3)

Vy = 14.5 m/s