Question

What are the common forces in mechanics?

Answer 1

We will encounter a variety of forces as we study mechanics. The two main categories of these forces are contact forces and non-contact forces. Below are some of the forces that are explained in detail: -

Contact Forces: -

1. When an object comes into contact with another object, a contact force develops. Mutual contact forces, which are consistent with Newton's Third Law of Motion, occur wherever two objects are in contact with one another.
2. "Normal Reaction" refers to the portion of the contact force that is normal to the contact surfaces.
3. Additionally, "Friction" refers to the element that runs parallel to the surfaces. Even when solids and liquids are in direct touch, a contact force can still exist.
4. A solid submerged in a liquid will experience buoyancy forces, air resistance, viscous forces, etc. as instances of contact forces.

Non-Contact Forces: -

1. A force that affects an object without making direct physical touch with it is known as a non-contact force.
2. Gravity, which bestows weight, is the most well-known non-contact force.
3. Gravitational force Magnetic force Electrostatics The nuclear force are some of the examples of Non-Contact Force.