Asked by Thomas

A bicycle wheel is 30 inches in diameter.

a. to the nearest revolution, how many times will the wheel turn if the bicycle is ridden for 3 miles.

b. suppose the wheel turns at a constant rate of 2.75 revolutions per second. What is the linear speed in miles per hour of a point on the tire?

Answers

Answered by Michael
For a...
Circumference = (pi)(d) = 30pi in

3 mi = 190,080 in

190,080 / 30pi = 6336 / pi = 2017 revolutions

Not sure about the second part.
Answered by Elizabeth
Part A
(3miles/1)*(5280ft/1mi)*(12in/1ft)*(1rev/15πin) is appx 4033 revolutions

Part B
(2.75rev/1sec)*(60sec/1min)*(60min/1hr)*(15πin/1rev)*(1ft/12in)*(1mi/5280ft) is appx 7.4 mph
Answered by Kidrauhl
The answers an owl as you at house of jug jug bird y'all finen




Answered by Kidrauhl
Maths is so cool
Answered by Kidrauhl
So this is a sensible answer basically you convert inches into miles which is about 190,080 inches then you do 30 times pie and divide them both
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