Summery in this chapter

Solution :
In this chapter you will learn following subtopic 
​​​​​​1. Definition of force 
2.Effects of force
3. Types of forces
4. Definition of pressure 
5. Basic calculation of pressure in different situation 
Summary of this chapter :
Force is direction and magnitude dependent physical quantity which is defined as push or pull on an object .
it can change or try to change state of motion ,shape and size of the of an object .
On contact basis , there are two types of forces 
1. Contact Forces -A contact force is any force that requires contact to occur .
                              ex- frictional force ,tension ,normal force ,air resistance etc
2. Non Contact Force - Such kind of force occur at a distance 
                                    ex - gravitational force , electrostatic force ,magnetic force etc

Pressure is defined as thrust ( force that act perpendicular to the plane of the surface ) per unit area .
it gives the intensity of force on the point of application of force