Newts Third Law

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Newts Third Law

• For every action, there is an equal but opposite
  reaction

F12 - F21
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Head of the Charles (BRC)
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Head of the Charles (BRC)
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Head of the Charles (BRC)
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Head of the Charles (BRC)
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Action-Reaction
REACTION?
Force exerted on oar by water
Fow
Force exerted on water by oar
Fwo
ACTION
-Fwo
Fow

Equal but Opposite
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Action
Action Forces Exerted ON the Water by Oars
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Reaction Propels Boat Forward
Reaction Forces Exerted ON the Oars by Water
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Action-Reaction Pairs
ALWAYS!!
Equal but Opposite
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Action - Reaction
F
-F

Reaction Force of water on ski
Action Force of ski on water
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Action - Reaction
F
-F

Reaction Force of water on ski
Action Force of ski on water
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Action - Reaction
Those reaction forces are equal!!
Reaction Force of water on ski
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Action-Reaction
Kims Apple Pie
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Action-Reaction
FORCE EXERTED ON PIE BY HANDS
FPH
FHP
FORCE EXERTED ON HANDS BY PIE
FPH
-FHP

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Action-Reaction
FPH
FHP
FPH
-FHP

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Action-Reaction
FORCE EXERTED ON PUMPKIN BY EARTH
Fg (mg)
What is the reaction force?
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Action-Reaction
Force Diagrams
FORCE EXERTED ON PUMPKIN BY EARTH
FPE
FORCE EXERTED ON EARTH BY PUMPKIN??
FEP
FPE
-FEP

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F truck -F bug
ACTION - REACTION
V
Ftruck ?
F truck
F bug
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ACTION - REACTION
Ma
F ma
Ma
F truck -F bug