Question

A box of 20 kg moves on a smooth horizontal surface with constant velocity. If the box has moved a distance of 4 metre then calculate the
work done by the box.​

Answer 1

$\huge\mathfrak\red{ANSWER}$

ZERO

Explanation:

When a body moves with a constant acceleration .

Then according to Newton's first law of motion.

If a body is moving with constant acceleration

then the net external force acting on the body is Zero.

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Now we know work done by box = force applied × displacement.

Since box is moving with constant velocity then force acting on it is 0

Thus work done by box =

$f \times d$

$0 \times 4m$

$= 0joule$

THUS WORK DONE BY BOX IS 0JOULE.

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BY SCIVIBHANSHU

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