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March 28, 2017

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How much kinetic energy does a 2000 kg traveling 70 mph have?

  • physics - ,

    A ball with mass m projected horizontally o the end of a table with an initial kinetic energy K. At a time t after
    it leaves the end of the table it has kinetic energy 3K. What is t? Neglect air resistance.

  • physics - ,

    gdeh

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