Common Forces In Mechanics

Mechanics

In mechanics we encounter several kinds of forces.

(I) Non-Contact Force

The gravitational force is all pervasive. Every object on the earth experience the force of gravity due to Earth. It is a non-contact force.

(II) Contact Force

A contact force on an object arises due to contact with some other object solid, liquid or fluid.

Example: Book resting on a table, friction force etc.

Contact force also arise when solids are in contact with fluids.

Example: A solid immersed in a fluid, Viscous Force (In fluid) etc.

Other common forces are tension in the string and force due to spring.

Tension Force

When a body of mass m is fastened with the string, then the weight of the body acts downward, while a force acts just opposite to the downward Force for balancing the downwards force. This force is called tension.

Tension, T = mg

where, T = Tension of the spring

Tension Force
Tension Force
Must Read

NCERT Class 11 Physics Book PDF Free Download

Also Read

SL Arora Class 11 Physics Book PDF Free Download

All In One Arihant Class 11 Physics Book PDF Free Download

Arihant All In One Chemistry Class 11 Book PDF Free Download

NCERT Class 11 Physics Hand Written Notes Chapter-Wise

Chapter-1 (Physical World) PDF Free Download

Chapter-2 (Units and Measurement) PDF Free Download

Chapter-3 (Motion In A Straight Line) PDF Free Download

Chapter-4 (Motion In A Plane) PDF Free Download

Chapter-5 (Laws Of Motion) PDF Free Download

Leave a Reply

Your email address will not be published.