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Physics

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Batman (mass = 95 kg) jumps straight down from a bridge into a boat (mass = 560 kg) in which a criminal is fleeing. The velocity of the boat is initially +10 m/s. What is the velocity of the boat after Batman lands in it?

  • Physics -

    Assuming the criminal's weight is included in that of the boat (560 kg), calculate the initial kinetic energy using
    KE0 = (1/2)Mv0²
    Calculate the new kinetic energy
    KE1 = (1/2)(M+m)v²
    Equate KE0 and KE1 and solve for v.

  • Physics -

    Or save yourself the trouble and use the following formula.

    I just did this problem.

    (m1*v01)/(m1+m2)

  • Physics -

    don't try this ^^ there wrong

  • Physics -

    mindy's is right

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