The position-time graph below represents the motion of two speed skaters, Bill and Ted on their Excellent Adventure as they time travel back to the 1952 winter Olympics in Oslo.  What was Ted’s velocity at 20s? What was Bill’s velocity during the middle portion of the race?  What was Ted’s average velocity throughout the race?

Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter39: Relativity
Section: Chapter Questions
Problem 39.5CQ
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Based on a grade 11 physics student, answer the following question:


The position-time graph below represents the motion of two speed skaters, Bill and Ted on their Excellent Adventure as they time travel back to the 1952 winter Olympics in Oslo. 

  1. What was Ted’s velocity at 20s?
  2. What was Bill’s velocity during the middle portion of the race? 
  3. What was Ted’s average velocity throughout the race?
  4. What was Ted’s acceleration through the race? (assume constant) 
  5. Make a velocity-time graph of Bill & Ted’s Speed Skating race.
Distance (m)
600
500
400
300
200
100
0
0
Speed Skating Race - 500m
10
20
30
Time (seconds)
40
47.0 s (Ted)
45.6s (Bill)
50
Bill
---Ted
Transcribed Image Text:Distance (m) 600 500 400 300 200 100 0 0 Speed Skating Race - 500m 10 20 30 Time (seconds) 40 47.0 s (Ted) 45.6s (Bill) 50 Bill ---Ted
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