Work, Power and Energy Part 1

Section: Physics

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Question : 50 of 100

Marks: +1, -0

A person pushes a box on a rough horizontal platform surface. He applies a force of

200\ \mathrm{N}

over a distance of

15\ \mathrm{m}.

Thereafter, he getsprogressively tired and his applied force reduces linearly with distance of

100\ \mathrm{N}

. The total distance through which the box has been moved is

30\ \mathrm{m}.

What is the work done by the person during the total movement of the box?

[4 Sep 2020 Shift 2]

$5690\ \mathrm{J}$
$5250\ \mathrm{J}$
$3280\ \mathrm{J}$
$2780\ \mathrm{J}$

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