Newtons 2nd Law
Newtons 2nd Law
- The acceleration of a body is inversely proportional to its
mass and directly proportional to the resultant of the external
forces acting on it.
- develop F=ma from proportionalities
- What does proportional mean?
- What is a proportionality constant?
- How can we get rid of a proportionality constant?
- What do we mean by resultant of external forces
- What is an external force?
- Magnet car p46 example
- FBD handling of external forces
- resultant means sum of
- use SF=ma
- how to solve force problems
- draw FBD
- sum forces
- apply SF=ma
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