Dynamics
Mass & Acceleration
2nd Law of Motion
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Ranking Task
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Rank the Net Force on each object
from greatest to least.
June 2015
Simulating Zero g
What's a Vomit Comet? — NASA
NASA and B.Y.U.
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The Formula
Mass & Acceleration Are Inversely Proportional
The acceleration a given force will produce on an object is inversely proportional to the mass of the object
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Object A
F = 10 nt
m = 2 kg
a = 5 m/s2
Object B
F = 10 nt
m = 4 kg
a = ?
↓
Object A
a = 5 m/s2
Object B
a = 2.5 m/s2
| a | m |
|---|---|
| ×2 | ×1/2 |
| ×1/2 | ×2 |
| ×1/3 | ×3 |
| ×3 | ×1/3 |
| ×1/4 | ×4 |
| ×3/2 | ×2/3 |
“Why do all bodies accelerate at a rate of 10 m/s2 (9.8 m/s2)”
(neglecting friction)
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Inertial Mass
Solve for m — finding mass using motion and force
What is the mass of the body
that produced the plot above?
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Enrichment
