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March 26, 2017

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During a circus performance, a 77-kg human cannonball is shot out of an 20-m-long cannon. If the human cannonball spends 0.91 s in the cannon, determine the average net force exerted on him in the barrel of the cannon.

  • Physics - ,

    He is accelerated out of the cannon at a rate "a" given by
    20 = (a/2) t^2 , where t = 0.91 s

    Therefore
    a = 48.3 m/s^2

    Use F = m*a
    for the average force F, in newtons.

    F = 3719 N

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