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A 0.4kg 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 65 N, what is the maximum rpm(revolution per minute) the ball can have?

HELP?
12 years ago

Answers

Elena
T=F=mv²/R=mω²R
ω=sqrt(T/mR)
f=ω/2π
12 years ago

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