(a) A rope is wrapped tightly around a wheel with a radius of 3 feet. If...
(a) A rope is wrapped tightly around a wheel with a radius of 3
feet. If the radius of the wheel is increased by 3 feet to a radius
of 6 feet, by how much must the rope be lengthened to fit around
the wheel? (Round your answer to two decimal places.)
ft
(b) Consider a rope wrapped around the Earth's equator. The radius
of the Earth is about 4000 miles. That is 21,120,000 feet. Suppose
now that the rope is to be suspended exactly 9 feet above the
equator. By how much must the rope be lengthened to accomplish
this? (Round your answer to one decimal place.)
ft
Homework Answers
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(a) A rope is wrapped tightly around a wheel with a radius of 3
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