1) What is the final rotational velocity of a point on the very outer edge of th

Question

1) What is  the final rotational velocity of a point on the very      outer edge of the disk?       

?f1 = ________ rad/ sec

2) What is  the final rotational velocity of a point that is      half way between the center of the disk and the outer edge?       

?f2 = __________ rad/sec

3) What is the final tangetial speed of a point on the very outer      edge of the disk?       

vT1 = ___________ m/sec

4) What is the final tangential speed of a point half way       between the center of the disk and its outer edge?       

vT2 = ___________ m/sec

5) What is the magnitude of the average angular acceleration of the disk during this      playing period?       

?AVG = _________ sec^2

Explanation / Answer

a)
By rotational velocity, I assume that you mean angular velocity, which would be 209 rpm, which equals 21.886 radians/second (the customary unit).
209 * 2 * pi / 60 = 21.8864 rad/s

b)
Same as (a). 21.8864 rad/s

c)
21.886 *0.06 = 1.3131 m/s.

d)
21.886 * 0.03 = 0.656 cm/s.

e)
((209 - 480) * 2 * (pi / 60)} / (75 * 60) = -0.0063radians/sec^2.

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