A football team's kicker punts the ball (mass=0.42 kg) and gives it a launch speed of 30m/s. find the impulse delivered to the football by the kicker's foot and the average force exerted by the kicker on the ball, given that the impact time is 0.0020 s.

A football team's kicker punts the ball (mass=0.42 kg) and gives it a

1.	A football team's kicker punts the ball (mass=0.42 kg) and gives it a launch speed of 30m/s. find the impulse delivered to the football by the kicker's foot and the average force exerted by the kicker on the ball, given that the impact time is 0.0020 s.
Answer» Solution :Impulse is equal to the change in linear momentum, so `J=Deltap=p_(f)-p_(i)=p_(f)=mv=(0.42kg)(30m//s)=13KGm//s` Using the equation `overline(F)=(J)/(DELTAT)`, we find that the AVERAGE force exerted by the kicker is `overline(F)=(J)/(Deltat)=(13kgm//s)/(2xx10^(-3)s)=6,500kg*m//s^(2)=6,500N`.

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A football team's kicker punts the ball (mass=0.42 kg) and gives it a launch speed of 30m/s. find the impulse delivered to the football by the kicker's foot and the average force exerted by the kicker on the ball, given that the impact time is 0.0020 s.

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