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physics

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A 2000 kg truck is at rest at a stop sign. A 1100kg car collides head-on with the truck. The car was moving at 15.0m/s before the collision if the collision was completely inelastic, what is the velocity of the car and the truck after the collision?

  • physics -

    I have never figured our why some teachers use the term "completeley" inelastic. Is that akin to being completely pregnant?

    anyway, the collision is inelastic.
    Momentum convervation: assume the car/truck are stuck.

    2000*O+1100*15=(2200+11OO)V solve for V

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