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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

(a) Find a conversion factor to convert from miles per hour to kilometers per hour. (b) For a while, federal law mandated that the maximum highway speed would be 55 mi/h. Use the conversion factor from part (a) to find the speed in kilometers per hour. (c) The maximum highway speed has been raised to 65 mi/h in some places. In kilometers per hour, how much of an increase is this over the 55-mi/h limit?

(a)

To determine
The conversion factor from miles per hour to kilometer per hour.

Explanation

From unit conversion,

1mi=1.609km

Calculating miles per hour to kilometer per hour,

1mi/h=(1mi/h)(1

(b)

To determine
The speed from miles per hour unit to kilometer per hour unit.

(c)

To determine
The increase in speed from miles per hour unit to kilometer per hour unit.

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