A 0.40 kg ball, attached to the end of a horizontal cord, is rotated in a circle of...

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Bob B

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...radius 1.3 m on a friction? A 0.40 kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.3 m on a frictionless horizontal surface. If the cord will break when the tension in it exceeds 57 N, what is the maximum speed the ball can have?
m/s
 
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