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A 0.40 kg ball, attached to the end of a horizontal cord, isrotated in a circle of radius 1.6 m on africtionless horizontal surface. The cord will break when thetension in it exceeds 57 N.
(a) What is the maximum speed the ball can have?
[ m/s]
(b) How would your answer be affected if there were friction?
[free response]
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