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bry662
27.01.2020 •
Mathematics
Atruck driver travels at 59 miles per hour. the truck tires have a diameter of 30 inches. what is the angular velocity of the wheels in revolutions per minute (rpm)?
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Ответ:
Step-by-step explanation:
we know that
1 mile=63,360 inches
step 1
Find the circumference of the wheels
we have
substitute
assume
Remember that
The circumference of the wheels represent one revolution
Convert 59 miles per hour to inches per minute
using proportion find the number of revolutions
therefore
substitute
Ответ:
Step 2
Step-by-step explanation:
9 was added on both sides