What was the magnitude of the average force on the football?

December 23, 2009 by admin · 1 Comment
Filed under: Physics 
football
boricuatripler asked:

A football player kicks a 0.41-kg football initially at rest; and the ball flies through the air. If the kicker’s foot was in contact with the ball for 0.51 s and the ball’s initial speed after the collision is 21 m/s, what was the magnitude of the average force on the football?

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One Response to “What was the magnitude of the average force on the football?”
  1. teddy boy says:
    December 25, 2009 at 12:38 pm

    Impulse = Change in momentum
    Ft = m(Vf – Vi)
    F(0.51 s) = 0.41kg(21 m/s – 0 m/s)
    F = (0.41)(21)/0.51
    F = 16.9 Newtons

    Hope this helps.

    teddy boy teddy boy

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