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physics

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a 1 kg dart moving horizntally at 10 m/s sticks to a wood block of mass 9 kg which slides across a friction free level surface. what is the speed of the block and dart after collision?

  • physics -

    Conservation of momentum applies

    1kg*10=(1+9)kg*V

  • physics -

    500000

  • physics -

    wrong answer

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