Homework Answers
v = rw
so,
rbig wbig = rsmall wsmall
13 * wbig = 5 * wsmall
wsmall = 13 * wbig / 5
convert 3 rpm to rad/sec
3 * 2*pi / 60 = 0.31415 rad/sec
wsmall = 13 * 0.31415 / 5
wsmall = 0.8168 rad/sec
or
wsmall = 7.8 or 8 rpm
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