Question

Which of the following forces will not cause any significant wear and tear between two objects between which they are acting?
(i) Gravitational force
(ii) Frictional force
(iii) Electrostatic force
(iv) Magnetic force

a.Only (i)
b.(i), (iv)
c.(i), (iii), (iv)
d (i), (ii), (iii) and (iv)​

Answer 1

Answer:

b. (i), (iv) I guess

Answer 2

The forces which will not cause any wear and tear between two objects between which they are acting are (i) Gravitational force, (iii) Electrostatic force, and (iv) Magnetic force ( option c.(i), (iii), (iv)).

Wear and tear will be caused more by contact forces which will act on the bodies when they come in contact with each other. In non-contact forces, the wear and tear will be less.

Among the following forces, only the frictional force is a contact force and therefore it will cause more wear and tear to the bodies between which they are acting. The other forces are non-contact forces and will not cause much wear and tear.