Isaac
Newton
1643 - 1727 |
Newton immersed ya in the concept
of inertia
It's all around ya but it won't hurt ya
Things keep doing what their already doing and that's inertia
But if a net force acts, it will disturb ya
The second law is all about a simple
formulation.
To get force multiply Mass and Acceleration.
If that's too much to say,
Try this abbreviation
F = M times A
F = M times A
OK, just a simple formulation
Forces come in pairs
And you feel your fair share
A skydiver feels the force of air
When gravity is balanced it's really quite fair
For every force there's an equal and opposite one in the pair
Got the explanation
Got the formulation
Now go and do the calculation
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This song is about Newton's second law,
F = ma, and his third law:
If object A exerts a force on object B,
then object B exerts an equal and opposite force on object A.
The song discusses the example of a skydiver.
In this case, there are two such action/reaction pairs:
1) The earth exerts a gravitational pull down on the skydiver,
and the skydiver exerts an equal and opposite gravitational
pull up on the earth. (Because the mass of the skydiver is much
less than that of the earth, the acceleration of the skydiver
is much greater than that of the earth.)
2) The air exerts a wind force up on the skydiver, and the skydiver
exerts and equal and opposite force down on the air.
Once the skydiver reaches "terminal
velocity", the force from the air cancels the gravitational
force from the earth, but these two forces do not form an action/reaction
pair. |
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The author of this song writes:
"The Newton Rap was inspired by my outstanding Physics
teacher, Mr. Lipp [of Stratford High School in Connecticut].
He gave the idea and the much needed encouragement to produce
the song that became part of an end-of-year project. The song,
for me, was a culmination and synthesis of the passion with
which Mr. Lipp presented the material."
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