What is the Problem?
What is known?
What value is wanted?
Draw a diagram to model (visualize the situation).
Find a relationship between the known values.
Is the system in Equilibrium?
If so, then the Sums of the Forces will be equal to zero.
That makes the problem easier!
Is the system in Equilibrium?
If not, then the Sums of the Forces will be equal mass x acceleration.
Is there Friction to consider?
Looks like a student experiment. .I,II,II
acceleration space!
Sums of Forces
F = -kx
Spring Scales
The Spring Force is not a constant force
as we have seen before.
A fundamental interaction is a mechanism by which particles interact with each other, and which cannot be explained by another more fundamental interaction. Every observed physical phenomenon, from galaxies colliding with each other to quarks jiggling around inside a proton, can thus be explained by these interactions. Because of their fundamental importance, understanding of these interactions has occupied the attention of physicists for over half a century and continues to do so.---WIKIPEDIA
Newton's First Law
The Law of Inertia
Frames of Reference
The Problem to the right
is an Animated Problem
Here is the actual pdf
