Mathematics. What Is The Solution To This Trigonometry Problem?
Mathematics. To Approximate The Speed Of The Current Of A River, A Circular Paddle Wheel With Radius 4ft Is Lowered Into The Water. If The Current Cau
Mathematics : What Is The Solution To This Trigonometry Problem
To approximate the speed of the current of a river, a circular paddle wheel with radius 4ft is lowered into the water. If the current causes the wheel to rotate at speed of 10 revolutions per minute, what I the speed of the current? Express your answer in miles per hour ~~~ madewill1028 ~~~
Best Answer To Mathematics Question
10 RPM means the outer edge of the wheel is moving at 10 times the circumference (in feet) feet per minute. 1) Compute the circumference (2pi*radius), multiply by 10 to get feet per minute. 2) One mile per hour = 5280 feet per 60 minutes or how many feet per minute? Divide the answer from No. 2 into the answer from No. 1 and there is your answer.
All Answers To Mathematics Questions
Answer 110 RPM means the outer edge of the wheel is moving at 10 times the circumference (in feet) feet per minute. 1) Compute the circumference (2pi*radius), multiply by 10 to get feet per minute. 2) One mile per hour = 5280 feet per 60 minutes or how many feet per minute? Divide the answer from No. 2 into the answer from No. 1 and there is your answer.
Answer 2I don't see it as a trig problem. If the wheel turns 10 times per minute, then it moves a distance of 2(pi)(r)(10) in that minute. With r=4 feet, then it must travel 80(pi) feet during that time. Over the course of an hour, it would travel 80(pi)(60) feet. Converting this to miles to hour can then be done by dividing by 5280. 80(pi)(60)/5280 = mph
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