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Physics Lect 2
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Newton's Laws
1) Law of
Inertia
2)
F = ma
3) For every
action
there is an
equal
and
opposite reaction
The law of Universal Gravitation
F = G (m
_{1}
m
_{2}
/r
^{2}
)
G = 6.67*10
^{-11}
m
^{3}
/kg/s
cos (0)
1
sin (90)
1
sin (30)
0.5
Circular Motion: Acceleration and Force
a
_{c}
= v
^{2 }
/ r
F
_{c}
= (mv
^{2}
) / r
* whenever F
_{c}
exists some other force is responsible for it
Normal Force for Inclined Planes
F
_{n}
= mg cosθ
Solving for F
_{n}
on a curved surface
F
_{n}
= mg cosθ + F
_{c}
F
_{c}
= (mv
^{2}
) / r
Tension
tension is constant throughout the rope
Hooke's Law
F = -k Δx
Author
laskiru
ID
58865
Card Set
Physics Lect 2
Description
Forces
Updated
2011-01-10T03:39:38Z
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