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406.04 Laws and Forces

406.04 Laws and Forces. OCdt Marleau. Outline. Newton’s Laws of Motion Four Forces Equilibrium Aerodynamic Couples. Newton’s First Law. A body persists its state of rest or of uniform motion will stay in motion unless acted on by an external unbalanced force. Newton’s Second Law.

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406.04 Laws and Forces

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  1. 406.04Laws and Forces OCdt Marleau

  2. Outline • Newton’s Laws of Motion • Four Forces • Equilibrium • Aerodynamic Couples

  3. Newton’s First Law A body persists its state of rest or of uniform motion will stay in motion unless acted on by an external unbalanced force.

  4. Newton’s Second Law Force = mass x acceleration

  5. Newton’s Third Law For every action, there is an equal and opposite reaction.

  6. How do Newton’s Laws affect planes?

  7. Four Forces • Lift • Drag • Weight • Thrust

  8. Equilibrium • A state in which opposing forces or influences are balanced. • Steady motion. • What happens when the forces are not in equilibrium?

  9. Aerodynamic Couples • Parallel forces that do not pass through the same point. • Couples cause a turning moment.

  10. Aerodynamic Couples • Lift and Weight • Thrust and Drag

  11. What we learned today. • Newton’s Laws of Motion • Four Forces • Equilibrium • Aerodynamic Couples

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