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March 28, 2017

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a bullet shot at 500 m/s into a block of wood of mass 0.49kg and becomes in-bedded in it. if it gives the block a speed of 11 m/s, find the mass of the bullet.

  • physics - ,

    This is a conservation of momentum problem.

    Mb*Vb = (Mb+Mw)*Vf

    The subscripts stand for bulldet, wood and final.

    Solve for Mb in this case. You already know Vf.

    Vb/Vf = 1 + (Mw/Mb) = 45.45
    Mw/Mb = 44.45
    Mb/Mw = 0.0225
    Mb = ___?

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