A point P moves around a circle of r = 1ft at 20rpm (rotations per minute). Find the linear velocity (to the nearest feet per minute)?

1 Answer
Sean
Apr 18, 2018

126 feet per minute

Explanation:

.

The perimeter of the circle is:

P=2pir=2pi(1)=2pi feet

The point moves around the circle at 20 rpm. i.e.:

2pi(20)=40pi=126 feet per minute

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