Engineering mechanics is composed of
two English word. these are
1. Engineering
2. Mechanics.
What is engineering?
It is a process in which we design a product or
service using scientific principle to fulfil needs of humankinds.
What is mechanics?
it is the branch of science which describe and
predicts the condition of rest or motion of bodies under the action of forces.
Engineering mechanics: -
It is the branch of branch of of engineering
that applies the principle of mechanics to design product and service.
Classifications of engineering mechanics
It is classified based on two parameters. these are
as follows.
1. State of motion
2. State of object
(I)Engineering mechanics classified based on
State of motion,
it is classified into two type i.e.
1. Static
2.dyanamics
Static-
It is the branch of mechanics which deals with the
study of object at rest.
Dynamics
It is the branch of mechanics which deals with the
study of object at motion.
Dynamics further classified into two type. These
are as follows-:
1. Kinetics
2. Kinematics
Kinetics-
It is the branch of mechanics concerned with the
motion of object with considering the forces which cause the motion.
Kinematics
It is the branch of mechanics concerned with the
motion of object without considering the forces which cause the motion.
(Ii) Engineering mechanics classified based
on State of object-:
It is classified into two type based on State of object.
These are as follows-:
1.resistant body
2. Rigid body
Resistant body -:
A body is said to be resistant body if it is deformed
under action of forces.
Deform means change in shape and size of a body
under action of forces.
Rigid body -:
A body is said to be resistant body if it doesn't
deform under action of forces.
There is no change in shape and size.