If lighter object in the earth attract earth with the Same force as earth attract it,why does it fall?
Why gravitational force is so called action reaction pair?
Classify the following amongst the contact and non-contact forces:
i) frictional force,
ii) normal reaction force
iii) force of tension in a string,
iv) gravitational force
Classify the following amongst contact and non-contact forces: (a) frictional force, (b) Normal reaction (c) force of tension in a string, (d) gravitational force, (e) electrostatic force, (f) magnetic force.