Is work done if you carry a book across the room at a constant velocity?

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makayladrochner makayladrochner · Answer 1 · 2017-06-12T16:58:45+02:00

Yes because it has been moved from its original point. if had stayed inone spot or had been dropped no work would have been done.

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aristocles aristocles · Answer 2 · 2019-08-24T05:59:37+02:00

Answer:

NO

Explanation:

As we know by work energy theorem that work done by all forces is given by change in kinetic energy of the system

it is given as

[tex]W_{net} = KE_f - KE_i[/tex]

so here since the kinetic energy is constant for the system

so here change in kinetic energy is zero

hence the net work done must be zero

Here we know that

[tex]v_i = v_f[/tex]

so here we can say that

[tex]\Delta KE = 0[/tex]

so no work is required to move the books at constant speed from one position to other position