Physics Lect 2

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Author:
laskiru
ID:
58865
Filename:
Physics Lect 2
Updated:
2011-01-09 22:39:38
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Forces
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Forces
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  1. Newton's Laws
    • 1) Law of Inertia
    • 2) F = ma
    • 3) For every action there is an equal and opposite reaction
  2. The law of Universal Gravitation
    • F = G (m1m2/r2)
    • G = 6.67*10-11 m3/kg/s
  3. cos (0)
    1
  4. sin (90)
    1
  5. sin (30)
    0.5
  6. Circular Motion: Acceleration and Force
    • ac = v2 / r
    • Fc = (mv2) / r
    • * whenever Fc exists some other force is responsible for it
  7. Normal Force for Inclined Planes
    Fn = mg cosθ
  8. Solving for Fn on a curved surface
    • Fn = mg cosθ + Fc
    • Fc = (mv2) / r
  9. Tension
    tension is constant throughout the rope
  10. Hooke's Law
    F = -k Δx

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