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Air Bags

Air Bags. Sections 6 and 7. Force and Impulse. Newton’s First Law of Motion. Force and Impulse. Newton’s First Law of Motion Why did the steel ball stop?. Force and Impulse. Newton’s First Law of Motion Why did the steel ball stop?

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Air Bags

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  1. Air Bags Sections 6 and 7

  2. Force and Impulse Newton’s First Law of Motion

  3. Force and Impulse Newton’s First Law of Motion Why did the steel ball stop?

  4. Force and Impulse Newton’s First Law of Motion Why did the steel ball stop? What would happen to the steel ball if there was nothing there?

  5. Force and Impulse Impulse – the product of force and the interval of time during which the force acts; impulse results in a change in momentum

  6. What Do You Think Now? Why are air bags effective? How does the air bag protect you?

  7. Impulse and Changes in Momentum Newton’s Second Law of Motion - If a body is acted upon by an external force, it will accelerate in the direction of the unbalanced force with an acceleration directly proportional to the force and inversely proportional to the mass; F=ma

  8. Impulse and Changes in Momentum Newton’s Second Law of Motion - If a body is acted upon by an external force, it will accelerate in the direction of the unbalanced force

  9. Impulse and Changes in Momentum Newton’s Second Law of Motion – theacceleration is directly proportional to the force

  10. Impulse and Changes in Momentum Newton’s Second Law of Motion – theacceleration is inversely proportional to the mass

  11. Impulse and Changes in Momentum Newton’s Second Law of Motion – F=ma

  12. Impulse and Changes in Momentum F m a Newton’s Second Law of Motion – F=ma

  13. Impulse and Changes in Momentum A moving car has a forward velocity of 15 m/s. Stopping the car gives it a final velocity of 0 m/s. The mass of the car is 1000 kg. What is the acceleration of the vehicle?

  14. Impulse and Changes in Momentum Impulse results in a change in…

  15. Impulse and Changes in Momentum Momentum – the product of the mass and the velocity of an object; momentum is a vector quantity; p = mv

  16. What Do You Think Now? How does the air bag “know” whether to inflate?

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