Asked by Musa

find the linear speed of each point 2cm and 15cm from the axis of a phonograph record rotating at 33 and 1/3 rev/min
Answered by Reed
Your School Subject is the University of Liberia? Are you studying the history of the school, it's governance, its students and faculty? I'm sure it's interesting, but fail to see how a phonograph record has anything to do with the study of an institution. If you are studying physics, you might want to put that in the School Subject line/box so a physics tutor might see your question.
Answered by Steve
for 2 cm, r=2. So, just figure the circumference of the circle of radius 2...

100/3 rev/min * 2π*2 cm/rev = 400π/3 cm/min

similarly for r=15.
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