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slacker1738
06.05.2020 •
Mathematics
A cyclist is riding a bicycle whose wheels have a diameter of feet. Suppose the wheels turn at a rate of revolutions per minute.
(a) Find the angular speed of the wheels in radians per minute.
(b) Find the speed of the cyclist in feet per minute. Do not round any intermediate computations, and round your answer to the nearest whole number.
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Ответ:
a.2010 rad/min
b.2412 feet/min
Step-by-step explanation:
We are given that
Diameter of wheel,d=2.4 feet
Radius,r=![\frac{d}{2}=\frac{2.4}{2}=1.2feet](/tpl/images/0645/2331/4b114.png)
a.Rate=320 rev/minute
1 rev=
radian
320 rev/minute=![320\times 2\pi=640\pi radian/minute](/tpl/images/0645/2331/d9e9b.png)
Where![\pi=3.14](/tpl/images/0645/2331/c19d0.png)
Angular speed=![640\times 3.14=2010 rad/min](/tpl/images/0645/2331/2cc97.png)
b.Speed,v=![r\omega](/tpl/images/0645/2331/e0e2f.png)
Ответ:
you may need to add another question
Step-by-step explanation:
type this question again, and maybe i can help you