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Chapter 4:Dynamics:Newton's Laws of Motion, FOO SIN YEW A20SC0079 -…
Chapter 4:Dynamics:Newton's Laws of Motion
Force
It is a vector quantity that have magnitude and direction
Newton's Law of Motion
First law
An object that is at rest will remain at rest,a body that is moving will continue to move with constant velocity,unless acted upon by an external force.
Second law
It is the relation between acceleration and force.Acceleration is directly proportional to force and inversely proportional to mass.
F=ma
Third law
Every action has a reaction which is of the same magnitude but opposite in direction
Mass
A fundamental property of all matter
Measure of inertia of an object
Weight
W=mg ,in which g=9.8m/s2
The force exerted on an object by gravity
Normal force
The force that exerted perpendicular to a surface
Free body Diagrams
FOO SIN YEW A20SC0079
