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3 Cards in this Set
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What is Newton's First Law? |
If a resultant force acting on a particle is zero, the particle will remain at rest (if originally at rest) or will move with constant speed in a straight line (if originally in motion). |
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What is a Free-Body Diagram? |
This is a diagram(s) showing a particle, and all the forces acting on it. When a particle is in equilibrium under three forces, the problem may be solved by drawing a force triangle. If more than three forces, the problem may be solved by drawing a force polygon. if analytic solution is desired we use: Σf(x)=0, Σf(y)=0. |
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