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It takes 214 kJ of work to accelerate a car from 23.1 m/s to 29.3 m/s. What is the car's mass?

  • physics -

    Work = 214,000 J
    = difference in kinetic energy.
    = (M/2)(V2^2 - V1^2)

    Solve for M (in kg)

  • physics -

    so would it be 1/2(29.3-23.1)/214000

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