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Margarita [4]
3 years ago
11

A point on the edge of a fan blade that is rotating in a plane is 10 centimeters from the center of the fan. What is the distanc

e traveled, in centimeters, by this point in 15 seconds when the fan runs at the rate of 300 revolutions per minute?
Mathematics
1 answer:
almond37 [142]3 years ago
4 0

= 23, 561. 945 cm

Step-by-step explanation:

If the fan does 300 rev per min;

300 rev : 60 sec

x rev : 15 sec

x = 300 * 15 / 60

x = 75 rev

One revolution of the point on the blade is equal to the circumference of the circle with a radius of 10 cm. Therefore;

2πr

2* 3.14 * 10

= 62.83 cm

75 revolution will be;

75 * 62.83 cm

= 4712.39 cm

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