Basics of applied mechanics

1. BASICS OF APPLIED MECHANICS
PART 1

2. CONTENTS:-
• Concept of Rigid Body
• Scalar & Vector Quantities
• Concept of Force & its characterstics
• System of Forces
• Principle of Transimissibility
• Composition & Resolution of Forces
• Laws of Forces

3. A rigid body (also known as a rigid object) is a solid body in which deformation is
zero or so small it can be neglected. The distance between any two given points
on a rigid body remains constant in time regardless of external forces exerted on
it.

5. FORCE :-
Force is the push or pull on an object with mass that causes it to change velocity (to
accelerate). Force represents as a vector, which means it has both magnitude and
direction.

6. IMPORTANT FACTORS OF FORCE:-

11. LAW OF FORCES

12. Law of Parallelogram:-
The law of parallelogram of forces states that if two vectors acting on a particle at the same time be
represented in magnitude and direction by the two adjacent sides of a parallelogram drawn from a point
their resultant vector is represented in magnitude and direction by the diagonal of the parallelogram drawn
from the same point .

13. DERIVATION OF LAW

14. LAMI'S THEOREM