ent Submission s assignment, you submit answers by question parts. The number of

Question

ent Submission s assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you subr nent Scoring st submission is used for your score. 0 7 P003. The tires on a new compact car have a diameter of 2.0 ft and are warranted for 58,000 miles (a) Determine the angle (in radians) through which one of these tires will rotate during the warranty period. rad (b) How many revolutions of the tire are equivalent to your answer in (a)? rev A bicycle is turned upside down while its owner repairs a flat tire. A friend spins the other wheel and observes that drops o moving vertically (see figure below). A drop that breaks loose from the tire on one turn nses vertically 60.0 cm above the ta above the tangent point. The radius of the wheel is 0.320 m.

Explanation / Answer

distance s = 58,000 miles = 58000*1609.34 = 93341720 m

diameter d = 2 ft = 2*0.3048 m = 0.6096 m

radius R = d/2 = 0.3048 m

part(a)

angle rotated = s/r = 306*10^6 rad

part(b)

number of revolutions = s/(2*pi*r) = theta/(2pi) = 48.7*10^6 rev

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