Give two examples, when bodies not in contact still exert force on each other.
Explain giving two examples each of : (a) Contact forces, and (b) Non-o contact forces.
Is it true that two bodies exert forces on each other only when they are in contact?
Can a force exist between two bodies, if they are not in physical contact with each other? Illustrate by giving an example.
Two objects always need to be in contact for them to exert force on each other.