   Chapter 1, Problem 37P

Chapter
Section
Textbook Problem

An automobile tire is rated to last for 50 000 miles. Estimate the number of revolutions the tire will make in its lifetime.

To determine
The number of revolutions the tire will make in its lifetime.

Explanation

Given Info: Considering the diameter of the tire on an average is 3ft .

So, the radius of the tire is 1.5ft and the total distance travelled is 50000mile .

Explanation:

The distance travelled per revolution.

Formula to calculate the distance travelled per revolution.

C=2πr

• C Is distance travelled per revolution.
• r is radius of the tire,

Substitute 1.5ft for r to find C .

C=2π×(1.5ft)=9.42ft9ft

Thus, distance travelled per revolution (C) is 9ft .

The number of revolution the tire will take

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