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Warm Up

Warm Up. A motorcyclist is traveling at 10 m/s along a flat and straight road. How long will it take to reach 32 m/s if the motorcycle can constantly accelerate at 4 m/s 2 ?. Test Material.

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Warm Up

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  1. Warm Up A motorcyclist is traveling at 10 m/s along a flat and straight road. How long will it take to reach 32 m/s if the motorcycle can constantly accelerate at 4 m/s2?

  2. Test Material Vectors (pgs. 28-32), especially section 3.3, Chapter 3 review questions 6, 24-27 (for 27, just the first 2 questions) Linear motion (pgs. 10-16), Chapter 2 review questions 1-14, 26-30, 42-46 Graphs of Motion (pgs. 21-24)

  3. Distance vs Time Graphs • Work in groups for 4 • Go to www.explorelearning.com • Launch the “Distance-Time Graph” Gizmo • Complete and hand in Exploration worksheet by the end of the period • 1 per group, make sure to put ALL of your names

  4. Warm Up Sit in your normal seats for attendance In the Gizmo, what was happening when the graph looked like: A B C

  5. Finish Gizmo

  6. Warm Up Which section of the graph shows: No movement? Fastest movement?

  7. Warm Up Calculate the instantaneous velocity for section A.

  8. Frame of Reference “Frame of Reference” is similar to “point of view” Motion is relative to the Frame of Reference

  9. 4 m/s 5 m/s 2 m/s 0 m/s

  10. Cheetahs have been observed running a distance of 5.50 x 102 m with an average speed of 1.00 x 102 km/h. How long (in hours) would it take a cheetah to cover that distance at the given speed?

  11. If the cheetah’s average speed was only 85 km/h, how far would cheetah run in the same time?

  12. A peregrine falcon, the fastest living creature, can fly 1.73 km downward in 25 s. What is the average speed of the falcon in km/h? Flying at it’s average speed, how long will it take to fly 300. km?

  13. A destroyer is initially at rest. What is it’s maximum speed if it takes 2.00 min to reach that speed at a constant acceleration of 0.19 m/s2? How far will it have traveled in that time?

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