Question

Which of the following are contact forces

a)normal reaction force
b)force between like poles of a magnet
c)muscular force
d)weight of a body

Some may have more than one correct selection.​

Answer 1

Answer:

Explanation:

The forces which act on bodies when they are in physical contact. are called contact forces. For e.g. frictional force and force exerted on two bodies during a collision.

The forces experienced by bodies even without being physically touched are called the non-contact forces. For e.g. Gravitational force and Electrostatic force.

Contact force: (a) frictional force (b) normal reaction force (c) force of tension in a string

Non-contact force: (d) gravitational force (e) electric force (f) magnetic force

Answer 2

Explanation:

I think all are the examples of contacts forces.