Bobpursely

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Bobpursely would you mind looking at my physics post. Just provide me with the formulas.

  • Bobpursely -

    FYI-Many questions are under the name "Anonymous".

    If you expect a particular tutor to help you, you need to be more specific.

  • helper -

    A 5kg bullet fired from a gun at 725m/s becomes embedded in a .50kg block of wood that is free to move along a surface and the coefficient of friction .355 between the surface and block of wood. find the distance it slides acroos the table.

  • Bobpursely -

    Use conservation of momentum to get the initial velocity of the block with imbedded bullet.

    Then set the initial kinetic energy of block & bullet equal to the work done against friction, and solve for trhe sliding distance.

    Check to make sure the bullet weight is really 5 kg. That is more like a cannonball. I suspect it is really 5 g.

  • Bobpursely -

    Thank you, drwls!

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