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LAWS OF MOTION - Coggle Diagram
LAWS OF MOTION
- Cluster 1: Force & Inertia
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- Aristotle’s fallacy vs Galileo
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- Inertia types: rest, motion, direction
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- Rolling: small, due to deformation
- Angle of friction λ: tanλ = μ
- Angle of repose θ: tanθ = μ → θ=λ
- Key: Friction opposes relative slipping tendency
- Cluster 7: Circular Motion on Roads
- Level road: Fc = fs → vmax = √(μgr)
- Banked road: Fc from N + f
- Optimum speed (no friction): v = √(rg tanθ)
- Safe speed range with friction
- Parking condition: tanθ ≤ μs
- Cluster 2: Force, Acceleration & Momentum
- 2nd Law: F = dp/dt → F = ma
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- Force causes change in momentum → acceleration
- Cluster 3: Action–Reaction & Conservation
- 3rd Law: equal & opposite, on different bodies
- Misconception: don’t cancel
- Conservation of momentum: Σp_before = Σp_after
- Examples: recoil, rockets, collisions
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- Static equilibrium: body at rest
- Dynamic equilibrium: body moves at const velocity
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- Examples: bus starts/stops, elevator, centrifugal force
- Not a real force, but needed for Newton’s laws
- Interaction → Force → Momentum change → Acceleration → New motion
- Newton’s 3 Laws as checkpoints
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