EBK PHYSICS
5th Edition
ISBN: 8220103026918
Author: Walker
Publisher: PEARSON
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Chapter 1, Problem 28PCE
Predict/Calculate Many highways have a speed limit of 55 mi/h. (a) Is this speed greater than, less than, or equal to 55 km/h? Explain. (b) Find the speed limit in km/h that corresponds to 55 mi/h.
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Conversion of Units a) On an interstate highway in a rural region of Wyoming, a car is traveling at a speed of 38.0 m/s. Is the driver exceeding the speed limit of 75.0 ?mi/h b) What if the driver were from outside the United States and is familiar with speeds measured in kilometres per hour? What is the ?speed of the car in km/h
a) On an interstate highway in a rural region of Wyoming, a car is traveling at a speed of 38.0 m/s. Is the driver ?exceeding the speed limit of 75.0 mi/h b) What if the driver were from outside the United States and is familiar with speeds measured in kilometres per hour? What is the speed of the carin ?km/h
Time False
1.
Speed =
Distance
2.
True
1 km/h =
m/sec
18
46.8 km/h = 12.8 m/s.
3.
4.
A man will take 40 minutes to travel a distance of 3 km at 4.5 km/h.
Q.IV Solve the following word problems:
1.
Find the distance that will be covered by a runner in 6 minutes if he runs at a
uniform speed of 20 km/h.
30
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Chapter 1 Solutions
EBK PHYSICS
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