This aesthetic, in-depth, neatly typed document summarises Section B of the IEB Grade 12 Physics syllabus: Newton's Laws and Application of Newton's Laws. This document includes the full Newton's Laws syllabus, all definitions, additional class notes, own research notes and all relevant diagrams.
Weight (Fg): Gravitational force that the earth exerts on any object on or near its surface
Normal Force (FN): Perpendicular force exerted by a surface on an object in contact with it
Resolving weight into components:
Newton's First Law:
An object continues in a state of rest or uniform velocity unless acted upon by a net force.
Newton's Second Law:
• When a net force is applied to an object, it accelerates in the direction of the net force
• The acceleration is directly proportional to the net force a®Fnet
1
• The acceleration is inversely proportional to the mass a®
m
(If net force is constant, then acceleration is constant)
Fnet
a=
m
) Fnet = m:a
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