by Robert MacKay

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Chapter 5

• by Robert MacKay

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Newtons Law of Action Reaction (3rd Law)

• You can not touch without being touched

For every action force there is and equal and
oppositely directed reaction force
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Newtons 2nd Law Free Body diagrams
A rock in Free Fall
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Newtons 2nd Law Free Body diagrams
A rock in Free Fall
w
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Free Body diagrams
A rock At the top of its parabolic trajectory (no
air resistance)
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Free Body diagrams
A rock At the top of its parabolic trajectory (no
air resistance)
w
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Newtons 2nd Law Free Body diagrams
A rock in Free Fall
w
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Newtons 2nd Law Free Body diagrams
A rock Falling with air resistance
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Newtons 2nd Law Free Body diagrams
A rock Falling with air resistance
R
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Newtons 2nd Law Free Body diagrams
A rock on a string
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Newtons 2nd Law Free Body diagrams
A rock on a String
T
For the FBD is acceleration, a, up or down ?
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Newtons 2nd Law Free Body diagrams
A rock sliding without friction
Vo
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Newtons 2nd Law Free Body diagrams
A rock sliding without friction
N
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Newtons 2nd Law Free Body diagrams
A rock sliding with friction
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Newtons 2nd Law Free Body diagrams
y
A rock sliding with friction
N
Fk
x
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