Question

Gravitational force, magnetic force and electrostatic force are the examples of

(A) contact force.

(B) non-contact force.

(C) muscular force.

(D) frictional force.​

Answer 1

Answer:

Tip :

The correct  answer in this option is ("B" Non-contact force")

Explanation:

1. The gravitational force is a non-contact force since it operates between two bodies that are not in physical touch.
2. The sun, for example, draws planets without actually colliding with them. The electrostatic and magnetic forces are similar in this regard.
3. Because two magnets may attract each other from a distance without coming into touch, the magnetic force is not a contact force, but the electrostatic force between stationary charges can also act from a distance.

Step:

1. The gravitational, electromagnetic, weak, and strong nuclear forces are the four basic forces of nature.
2. They are all non-contact forces.
3. The standard model of particle physics explains non-contact forces as the result of the interchange of particular mediating particles between two substances.

Final answer:

1. The bodies showing these forces do not need to be in direct touch with one another and can act from afar.
2. Friction is a contact force because it requires the bodies to come into touch in order for the frictional force to act.

Answer 2

Answer: correct option is B

Explanation:

ples mark me brilliant