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April 19, 2014

Homework Help: physic

Posted by Chan on Sunday, November 15, 2009 at 4:08pm.

Hi! could you help this problem please try so many time but, the answer is not correct.
Question:The tires on a new compact car have a diameter of 2.0 ft and are warranted for 62,000 miles.
(a) Determine the angle (in radians) through which one of these tires will rotate during the warranty period.



physic - drwls, Sunday, November 15, 2009 at 1:46am
Each revolution moves the car pi*D = 6.283 feet
62000 miles is 327,360,000 feet
The number of revolutions is 5.210*10^7.
The number of radians is 2 pi times that... over 300 million

Hi! so you mean I have take 5.210*10^7 mutilply by 2 pi and than divide by 300 million. Just want to clarify thank you.

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