SOLUTION: A pulley of radius 12 cm turns at 7 rps. What is the linear velocity of the belt driving the pulley in meters per second?

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Question 532298: A pulley of radius 12 cm turns at 7 rps. What is the linear velocity of the belt driving the pulley in meters per second?
Found 2 solutions by Alan3354, lwsshak3:
Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website!
A pulley of radius 12 cm turns at 7 rps. What is the linear velocity of the belt driving the pulley in meters per second?
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r = 12 cm = 0.12 meters
Circum = 2*pi*r = 0.24pi meters
vel = 0.24pi*7 = 1.68pi m/sec

Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website!
A pulley of radius 12 cm turns at 7 rps. What is the linear velocity of the belt driving the pulley in meters per second?
**
circumference of pulley=2πr=2π12=24π cm
at 7rps, linear velocity=7*24π cm/s
or 7*24π cm/s*(m/100cm)=1.68π m/s
ans:
linear velocity of the belt driving the pulley=1.68π m/s