Law of Mechanics in Applied Mechanics
The Branch of Engineering Mechanics which deals with the study of different laws of mechanics as applied to the solution of Engineering Problems is called Applied Mechanics.
Engineering Mechanics is subdivided into three branches.
- Mechanics of Rigid bodies
- Mechanics of Deformable bodies.
- Mechanics of Fluids.
In mechanics of Rigid bodies, deformations are assumed very small and hence neglected. The small deformations does not appreciably affect the conditions of equilibrium. But in actual structure and machines, the deformations are also analysed, that branch of mechanics is called as “Mechanics deformable bodies” (or Mechanics of materials) or strength of materials.
Mechanics of Fluids is the branch of Science which deals with the behavior of fluids, subjected to the action of forces in the state of rest and motion.
Law of Mechanics in Applied Mechanics PDF Download
Synopsis:
- Statics
- Dynamics
- Kinematics
- Laws of Mechanics
- First Law
- Second Law
- Third Law
Laws of Mechanics :
The study of Rigid body mechanics is based on the following three laws of Mechanics.
First Law :
A particle remain in its position (rest or motion) if the resultant force acting on the particle is zero.
Second Law :
Acceleration of the particle will be proportional to the resultant force and in the same direction, if the resultant force is not zero.
Third Law :
Action and reaction forces between the interacting bodies are in the same line of action, equal in magnitude, but acts in the opposite direction.