Question

if a body does not move from it's position when force is applied​

Answer 1

An applied force is never zero and if there is no change in the position of a body that has a force applied to it that could mean the force was not strong enough to overcome the mass of the body. I think the calculation of the force is based on the applied force itself and not on the results of its application. But I am not certain.

Explanation:

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Answer 2

An applied force is never zero and there is no change in the position of a body.

Explanation:

• An applied force is never zero and there is no change in the position of the body that has a force applied to it that could mean the force was not strong enough to overcome the mass of the body.

• The calculation of the forces is based on the applied force itself and not on the result of its application,  if the force was zero, then no force was applied.

• It means the total applied force is zero. So there must be another force besides the one you applied (probably friction) that cancels it out and gives a net external force of zero.

• The net external force applied is not zero, however, the work done is zero.  

• Work done is defined as the displacement of a body when a force is applied.