Please enable JavaScript.
Coggle requires JavaScript to display documents.
Dynamics : Newton's Laws of Motion, Low Jing Ning A20SC0126 - Coggle…
Dynamics : Newton's Laws of Motion
Solving Problems
Free body diagrams
General approach
Newton's Third law of Motion
"Whenever one object exerts a force on a second object, the second exerts an equal force in the opposite direction on the first"
There is an equal and opposite force
Force
pull / push
is needed to move a rest object
is needed to change velocity of moving object
vector quantity
Mass
SI unit - kilograms(kg)
property of an object
not same as weight
remains the same although in the Moon
Newton's Second Law of Motion
F=ma
acceleration is directly proportional to force and inversely proportional to mass
Si unit of force is Newton(N)
Weight
F=mg (g=9.80m/s2)
Force exerted on an object by gravity
Weight will varies according to the location
Newton's First Law of Motion
inertia
"Every object continues in its state of rest, or of uniform velocity in a straight line, as long as no net force acts on it"
Low Jing Ning A20SC0126