Force
it can be defined as the cause of change in the state of motion copper
particle or body.
According to to Newton's law of motion force is the product of mass of
the particle and its acceleration.
Force is
denoted by F
Mathematically
F=ma
Where m =
mass of the particle
a =
acceleration of the particle
type of forces
Characteristics of forces
If a
force has following basic characteristics. these are as follows
- Magnitude
- direction
- point
of application
- line
of action
how to
write a force
as we
know force is vector quantity
so F
force
system
force system is simply a term used to describe a group of forces.
classification of force system -
force system classify on the basis of following
1. the plane
on which it act or coplanar force system
2. the
direction on which it act or parallel force system
3. the point
of application on which it act or concurrent force system
4. the line
of force on which it act or collinear force system
classification on the basis of plane on which forces act -
1. co-planer
force system
2. non-co-planer
force system.
co-planer force system
a force system is said to be co-planer force system if all the force acting on the body are in same plane .
here forces are F1,F2.F3,F4 are acting on a same plane.
non-co-planer Force system.
ca force system is said to be non-co-planer force system if all the force acting on the body are not in same plane .
classification based on direction of forces by
(parallel force system)
parallel force system
a force
system is said to be parallel force system if all the force acting on the body
are parallel to each other .
here forces
are F1,F2.F3,F4
are acting
parallel force
system further classified into two type
1. like parallel
force system
2. unlike
parallel force system
like parallel force system
a force
system is said to be like parallel force system if all the force acting on the
body are parallel to each other and acting in same direction .
here forces
are F1,F2.F3,F4
are acting in same direction .
unlike parallel force system
a force
system is said to be unlike parallel force system if all the force acting on
the body are parallel to each other and acting not in same direction .
classification based on
the point of application
concurrent
force system further classified into two type
1.concurrent
force system
2. non-concurrent
force system
concurrent
force system
a force
system is said to be concurrent force system if all the force acting on the
body are meeting at a single point .
here forces
are F1,F2.F3,F4
are meeting at a single point .
non-concurrent
force system
a force
system is said to be non-concurrent force system if all the force acting on the
body are not meeting at a single point .
here forces
are F1,F2.F3,F4
are not meeting at a single point .
based on
the line of force on which it acts or collinear force system
force
system further classified into two type
1. collinear force system
2. non- collinear force system
collinear force system-
a force system is said to be collinear force system if all the force
acting on the body are lies in a single line of force .
here forces
are F1,F2.F3,F4
are lies in a single line of force .
non-collinear force system-
a force system is said to be non-collinear force system if all the force
acting on the body are not lies in a single line of force .
here forces
are F1,F2.F3,F4
are not lies in a single line of force .
few other force system or mixed force system
coplanar and concurrent force system
a force system is said to be coplanar and concurrent force system if all the force acting on the body are coplanar and concurrent .
here forces
are F1,F2.F3 are coplanar and concurrent .
non-coplanar and non-concurrent force
system
a force system is said to be coplanar and concurrent force system if all the force acting on the body are non-coplanar and non-concurrent .
here forces
are F1,F2.F3are non-coplanar
and non-concurrent.
the following
are the erect of Force
- Force can make a stationary object to move or make a moving object to move faster.
- force can slowdown or completely stop a moving object
- force can change direction of a moving object.
- force can change shape and size or object.