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TRANSCRIPT
11/14/2012
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NEWTON’S 2ND LAW
GRADE HOMEWORK
� Identifying Forces
FORCE NET
�We know that the acceleration is due to ALL of
the forces acting on an object
� The net force is the total of all of the forces
� If there are any forces in both dimensions, just
do vector addition, as before
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NORMAL FORCE
Fnorm1Fnorm2
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Fnorm1
Fnorm2
Fnorm3,4
SIMPLE NORMAL FORCE
Fnorm = Fgrav
HOMEWORK