what do you understand by ‘work’? explain with an example.
Answers
Explanation:
work mean which we do something it could be two types likes one person do some things for salary so they can fulfill their need and for their family they do and earn money so they can eat we will do nothing so they will die without food and another type is that we do something for timepass or to spend time
Definition of work
Work is said to be done when there is a movement of the object on which the work is done .
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When we took a book from the table and kept it in in bed then we will say that work is been done whereas when we push the wall and there is no movement in wall we will say that no work is done although large amount of energy is been used by us but in the term of physics no work is said to be done .
We can also define work as :-
Work is said to be done when there is force applied on an object and there is displacement in the object .
w = f * d
The S.I unit of work is joule .
One joule is defined as the amount of work done when a force of one newton is exerted through a distance of one meter .
( definition from book )
The total work done by an object is equal to the kinetic energy of the object .