Question

what are the conditions necessary for work to be done​

Answer 1

Answer :-

The necessary conditions for work to be done are::

• A force must have applied on an object.

• The object must be displaced from it's position in the direction of force.

• The force applied must not be at 90°.

Explanation :-

• What is work done?

Work is said to be done when an applied force produced a displacement in the direction of force.

• Formula for work done:

Work done= Force×Displacement×cosø

• Now move on to question:

If force is not applied, it means value of force will also be 0 and so value of work will also be 0 according to the formula.

If there is no displacement, value of displacement will be 0, as a result work done will also be 0 from Formula.

If force is acting on 90° on object, value of cos90° is 0, it will result in making value of work done=0.

Note→Necessary conditions for work done can be simply obtained by remembering formula for work done.