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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.

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Presentation on theme: "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."— Presentation transcript:

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/s 2 ?

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

10 Cheetahs have been observed running a distance of 5.50 x 10 2 m with an average speed of 1.00 x 10 2 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/s 2 ? How far will it have traveled in that time?


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