Question

Give one example in the following case where:
Force is at a distance.

Answer 1

As a first step, one could read the question well and hence understand what exactly is asked in the question. So, basically all we have to do is identify the force that is acting at a distance and also find an example for the same. For that we could recall the basic classification of forces as a first step.

Complete answer:
In the question, we are asked to find an example for a case where force is acting from a distance. In order to answer this question one should be aware of the distinction between contact force and non contact force.
We term that force that is acting between two bodies that are in contact to be contact force. For example, while pushing a table towards the wall or maybe pulling something requires direct contact between us and the object being pulled or pushed. Surface tension, air resistance, frictional force, drag force are all examples of this force.
Now the non contact forces are the class of forces that acts between bodies that aren’t in contact with each other. Now, you may realize that it is a non contact force which is the force between acting at a distance. An example for this category of force is the magnetic force between magnetic poles. Thus we found the answer.

Note: Contact forces can be represented by vector fields but there is no possibility of representing non contact forces with the help of vector fields. Also the contact forces have no field associated with it and non contact forces do have a field associated with it. Clearly, there is no physical effort required in non contact forces and hence are invisible.