Question

Identify the state of the object in the given situation.
(a) A basket being carried by a person on his head, relative to the man and relative to the ground.

Answer 1

Answer ':::::

Gravitational force on the box is acting in the downward direction. Since the boy walks horizontally, his vertical displacement is zero. Hence, when a boy carrying load on his head moves over a horizontal road, work done against gravitational force is zero.

Answer 2

Answer:

Explanation:

Work done in physics is not as of daily life.

Until displacement by a force applied,there is no work.

So when the worker carrying a luggage on his head or on his hand then no work is done.

It has two causes,

W=F⃗ ⋅S⃗  ,so here there is no displacement,hence no work done.

According to work energy theorem work done is equal to change in kinetic energy.But here no change in kinetic energy. So work done is zero.

Hope it helps you..

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