Please enable JavaScript.
Coggle requires JavaScript to display documents.
DYNAMICS : NEWTON'S LAWS OF MOTION, dynamics-study of how forces…
DYNAMICS : NEWTON'S LAWS OF MOTION
4.1 FORCE
vector
-magnitude and direction
push
pull
Net force
Equilibrium - Net Force = 0
Free Body Diagram
Gravitational force
Frictional force
Normal force
Applied force
Sum of force of an object
4.3 Newton's Second Law Of Motion
state that the rate of change of momentum is proportional to the resultant force acting on it and acts in the direction of the resultant force
F=ma
acceleration
directly proportional
to force
acceleration
inversely proportional
to mass
Example : catch, tennis ball
4.2 Newton's First Law of Motion
Law of Inertia
mass is measure of inertia
large mass, large inertia
mass = weight
Example : seatbelt, table cloth magic
state that a body will remain in its state of rest or uniform motion in a straight line unless acted upon by a resultant force
4.4 Newton's Third Law of Motion
Every action has a reaction which is of the same magnitude but opposite in direction
involve 2 bodies
action - force exerted on A by B
reaction - force exerted on B by A
Example : walking, balloon, rocket
4.5 Weight
force exerted on an object by gravity
W = mg
4.6 Solving Problems with Newton's Laws
: Free Body Diagram
Pully System
Inclined Plane
dynamics-study of how forces affect the motion of objects and systems
/
WONG SIEW HAN A20SC0425
