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Homework :D

Homework :D. Do Now. TURN IT IN. Objectives 1-5. Agenda Quiz 10 WDY See? 5 WDY Think? 5 Investigate 30. We are learning… Braking distance is dependent on the negative acceleration of the vehicle (brakes, road surface) and reaction time (d=v 2 /2a) We will be successful when we can…

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Homework :D

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  1. Homework :D • Do Now TURN IT IN

  2. Objectives 1-5 • Agenda • Quiz 10 • WDY See? 5 • WDY Think? 5 • Investigate 30 We are learning… • Braking distance is dependent on the negative acceleration of the vehicle (brakes, road surface) and reaction time (d=v2/2a) We will be successful when we can… • Plan and carry out an experiment to relate braking distance to initial speed • Determine braking distance • Examine accelerated motion

  3. Quiz 1-4 10 minutes!

  4. WDY See? (p 75) 3 minutes! Section5Negative Acceleration:Braking Your Automobile

  5. WDY Think? (p 75) 3 minutes! Imagine you are driving at the speed limit on a two-lane, rural road, and you suddenly see an animal crossing the road ahead of you. Suppose you cannot swerve to miss the animal because of trees on each side of the road What factors must you consider to determine if you will be able to stop in the distance between you and the animal to avoid hitting it?

  6. Investigate 3 minutes! 1a – 1b • Initial speed  speedat which you begin to apply the brakes • Braking distance  distance required to bring the vehicle to rest once the brakes are applied • You will collect data to study the relationship between initial speed and braking distance Braking Distance Initial Speed

  7. Investigate 14 minutes! 2

  8. Investigate 10 minutes! 3 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6

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