In a football game a kicker attempts a field goal. The ball remains in contact w

Question

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0234 s, during which time it experiences an acceleration of 392 m/s2. The ball is launched at an angle of 54.2

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0234 s, during which time it experiences an acceleration of 392 m/s2. The ball is launched at an angle of 54.2 degree above the ground. Determine the (a) horizontal and (b) vertical components of the launch velocity.

Explanation / Answer

vf= vi +at

vf= 0 +392*0.0234

vf= 9.17 m/s

x-component of velocity: vfx= vfcos54.2=5.364 m/s

y-component of velocity: vfy= vfsin54.2= 7.437 m/s

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