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Chapter 1: Problem 24

Highways in Canada have speed limits of \(100 \mathrm{km} / \mathrm{h}\). How does this compare with the \(65 \mathrm{mi} / \mathrm{h}\) speed limit common in the United States?

Short Answer

Expert verified
The common speed limit in the United States is approximately \(104.6 \mathrm{km/h}\), which is higher than the \(100 \mathrm{km/h}\) limit in Canada.

Step by step solution

01

Convert US Speed Limit to km/h

Recognize that we need to compare both speed limits in the same units. Therefore, convert the US speed limit from miles per hour (mi/h) to kilometers per hour (km/h) for a fair comparison. There is approximately 1.60934 kilometers in a mile, so multiply the US speed limit (65 mi/h) by this conversion factor: \(65 \mathrm{mi/h} * 1.60934 \mathrm{km/mi}\)
02

Calculate Converted Speed

Carry out the multiplication from step one: \(65 * 1.60934 \approx 104.6 \mathrm{km/h}\)
03

Compare Speed Limits

Now, compare the converted US speed limit with Canada's speed limit. \(104.6 \mathrm{km/h} > 100 \mathrm{km/h}\), which means that the common speed limit in the United States is higher than the limit in Canada.

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