Homework Help: physics

Posted by bubble on Sunday, January 10, 2010 at 2:33am.

An automobile tire is rated to last for 60,000 miles. To an order of magnitude, through how many revolutions will it turn? I dont know what circumference i should use for 1 rev

physics - drwls, Sunday, January 10, 2010 at 10:13am
According to
http://www.ajdesigner.com/fl_tire/tire.php
the circumference of a typical automobile tire (205 60SR15) is 2.0 meters.

Convert 30,000 miles to meters (by multiplying by 1609 meters/mile) and divided it by 2 meters per revolution.

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