Question

what is the work and explain the work

Answer 1

heya bestiee
*___________*.

work is only said to be done when a force applied to a body makes a displacement.

there are some conditions.

there must be a force .
there must be caused displacement.
the should be direction of froce applied

Answer 2

Suppose a case :-


Your mother ordered you to move the sofa from a place to other. She went out. You were unable to move it. She came for checking. She said, "Why you didn't move the sofa?"
Even though you tried to move the sofa!

See Another case
Next day your mother ordered to move the old books from a place. You did that easily. She came for checking and she saw that the books are moved. She would say, "Great! You have completed the work"

Same thing is with the "work" used in science.
We may conclude from this.
Work is only said to be done when displacement is there.
But only displacement?

Suppose another case when you were ordered to move the sofa. This time mother is keeping an eye on you! You told your elder brother to move the sofa. He did. Remember, mother was watching you. She came and said, "You didn't work. You didn't apply force, your brother did!"

So, “Work is said to be done only when some force is applied and some displacement is there.”

Scientifically, if you are applying force and displacement is there, then only work is done. Suppose you have exams. You are studying hard. You are working hard but this work is not the scientific term used for work, because you are studying only. You are not displacing.

Work is also defined as the product of force and displacement

=> W = F × s

Where W is work, F is force and s is displacement.

Note that, in the formula, if F or s will be 0, then W will be 0


Hope you understand