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Khan

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A person lifts a 4.3 kg cement block a vertical
distance of 1.3 m and then carries the block
horizontally a distance of 5.3 m.
The acceleration of gravity is 9.81 m/s
2
.
a) Determine the work done by the person
in the process.
Answer in units of J

  • Physics(work done) - ,

    There is no work done by moving the load horizontally.
    The only work done is the lifting, which is equivalent to the potential energy gained by the block given by:
    Ep=mgh.

  • Khan - ,

    YOlO

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