<p>A rotating fan completes n revolutions every minute. Consider the tip of a bl

Question

<p>A rotating fan completes n revolutions every minute. Consider the tip of a blade, at a radius r. (a) Through what distance does the tip move in one revolution? What are (b) the tip's speed (in meters per second) and (c) the magnitude of its acceleration (in meters per second-squared)? (d) What is the period (in seconds) of the motion? (Note: Using &#960; when appropriate.)<br /><br />This is the full question. I have figured out part a, and would like help on part b.</p>

Explanation / Answer

a. 2pi r b. v = n * 2pi / 60 * r = 2pi r n / 60 c. a = [n * 2pi/ 60 ]^2 r = 4 pi^2 n^2 r / 3600 d. T = 2pi / [ n * 2pi / 60 ]

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