Physics: Principles with Applications
Physics: Principles with Applications
6th Edition
ISBN: 9780130606204
Author: Douglas C. Giancoli
Publisher: Prentice Hall
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Chapter 1, Problem 20P

(a)

To determine

The conversion factor between km/h and mi/h.

(a)

Expert Solution
Check Mark

Answer to Problem 20P

The conversion factor is 1km/h=0.625mi/h

Explanation of Solution

Given:

The given unit are, km/h and mi/h

Formula used:

1 mile = 1.6 km

Calculation:

Since 1 mile = 1.6 km

So,

  1mi/h=1.6km/h1km/h=0.625mi/h

Conclusion:

Thus, the conversion factor is 1km/h=0.625mi/h

(b)

To determine

The conversion factor between m/s and ft/s.

(b)

Expert Solution
Check Mark

Answer to Problem 20P

The conversion factor is 1m/s=3.28ft/s

Explanation of Solution

Given:

The units are ft/s and m/s

Formula used:

1 ft = 0.3048 m

Calculation:

Since 1 ft = 0.3048 m

So,

  1ft/s=0.3048m/s1m/s=3.28ft/s

Conclusion:

Thus, the conversion factor is 1m/s=3.28ft/s

(c)

To determine

The conversion factor between km/hr and m/s.

(c)

Expert Solution
Check Mark

Answer to Problem 20P

The conversion factor is 1km/hr=0.278m/s

Explanation of Solution

Given:

The units are km/hr and m/s

Formula used:

1 km = 1000 m

1 hr = 3600 s

Calculation:

Since 1 km = 1000 m and 1 hr = 3600 s

So,

  1km/hr=10003600m/s1km/hr=518m/s=0.278m/s

Conclusion:

Thus, the conversion factor is

  1km/hr=0.278m/s

Chapter 1 Solutions

Physics: Principles with Applications

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