thomasgnathan
31.10.2019 •
Mathematics
Amixing blade on a food processor extends out 2 inches from its center. if the blade is turning at 400 revolutions per minute, what is the linear velocity of the tip of the blade in feet per minute?
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Ответ:
v = 418.88 feet/min
Step-by-step explanation:
R = 2 inches = (2 inches)(1 feet / 12 inches) = 0.166 feet
ω = 400 rev/min = (400 rev/min)(2π rad / 1 rev) = 2513.28 rad/min
v = ?
We can apply the equation
v = ω*R ⇒ v = (2513.28 rad/min)*(0.166 feet) = 418.88 feet/min
Ответ:
1. 66.08
2. 37.7
3. 214.5
4. - 3.5