Problem 6: In the College Games, the winner ran the 200 meters' race in a time of 20.32 seconds. The diagram below shows a sketch of the speed-time graph for the winner's race. Speed (metres per second) 20.32 Time (seconds) a. Calculate his average speed in meters per second. Give your answer correct to 1 decimal place. b. Calculate his maximum speed in meters per second. Give your answer correct to 1 decimal place. c. Calculate his acceleration over the first 5 seconds. State the units in your answer. Give your answer correct to 2 significant figures.

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter21: Direct And Inverse Proportions
Section: Chapter Questions
Problem 16A: Figure 219 shows a compound gear train. Gears B and C are keyed to the same shaft; therefore, they...
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Problem 6: In the College Games, the winner ran the 200 meters' race in a time of 20.32 seconds.
The diagram below shows a sketch of the speed-time graph for the winner's race.
Speed
(metres
per
second)
20.32
Time (seconds)
a. Calculate his average speed in meters per second. Give your answer correct to 1 decimal place.
b. Calculate his maximum speed in meters per second. Give your answer correct to 1 decimal place.
c. Calculate his acceleration over the first 5 seconds. State the units in your answer. Give your answer
correct to 2 significant figures.
Transcribed Image Text:Problem 6: In the College Games, the winner ran the 200 meters' race in a time of 20.32 seconds. The diagram below shows a sketch of the speed-time graph for the winner's race. Speed (metres per second) 20.32 Time (seconds) a. Calculate his average speed in meters per second. Give your answer correct to 1 decimal place. b. Calculate his maximum speed in meters per second. Give your answer correct to 1 decimal place. c. Calculate his acceleration over the first 5 seconds. State the units in your answer. Give your answer correct to 2 significant figures.
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