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psyhics

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A ball is dropped from the top of a 95 m building. With what speed does the ball hit the ground?

  • psyhics -

    The kinetic energy when it hits the ground equals the initial potential energy.

    M*g*H = (1/2)MV^2

    V = sqrt(2 g H)

    H is the initial height and g is the acceleration of gravity.

    Aerodynamic friction has been neglected. The true velocity will be slightly less

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