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Newton’s second law

Newton’s second law. Section 3.1. Warm up. What is acceleration? How do we calculate acceleration ?. Acceleration. An unbalanced force causes an object to accelerate. What type of force is represented in each of the following figures?.

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Newton’s second law

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  1. Newton’s second law Section 3.1

  2. Warm up • What is acceleration? • How do we calculate acceleration?

  3. Acceleration An unbalanced force causes an object to accelerate.

  4. What type of force is represented in each of the following figures?

  5. The acceleration of an object is directly proportional to the net force acting on the object…..…… the acceleration of an object is inversely proportional to the mass of the object.

  6. Relating net force, mass and acceleration…..

  7. Newton’s second law of motion Acceleration = Fnet mass

  8. Calculate the acceleration of the rock

  9. Calculate acceleration

  10. Calculate acceleration

  11. Relation between acceleration and forces • Large Force = Large Acceleration F a

  12. In other words….

  13. In other words…..using the same amount of force….

  14. Application …. 1- If the mass of a helicopter is 4500 Kg, and the net force on it is 18000N, what is the helicopter’s acceleration?

  15. Application 2- what is the net force with a mass of 900 Kg if its acceleration is 32.0 m/s2?

  16. Application 3- a car is being pulled by a tow truck. What is the car’s mass if the net force on the car is 3000N and it has an acceleration of 2.0m/s2?

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