Asked by Renee
A coin is placed on a record that is rotating at 45 rpm. If the coefficient of static friction between the coin and the record is 0.2, how far from the center of the record can the coin be placed without having it slip off?
Answers
Answered by
bobpursley
.2(mg)=m w^2 r
change 45rpm to rad/sec
solve for r.
change 45rpm to rad/sec
solve for r.
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