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March 30, 2017

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A block of mass 5 kg, which has an initial
speed of 3 m/s at time t = 0, slides on a
horizontal surface. Find the magnitude of the work that must be done on the block to bring it to rest.
Answer in units of J.

  • Physics - ,

    Negative work must be done ON the block, and the magnitude equals the initial kinetic energy, (M/2)*Vo^2

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