physics

a .45kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.3m on a frictionless horizontal surface. if the cord will break when the tension in it exceeds 75 N, what is the maximum speed the ball can have?

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asked by Sasha
  1. 75=mv^2/r
    solve for v.

  2. The answer is actually 14.72 m/s :)
    (the square root of 1.3*75/.45 = 14.72)

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    posted by GARRETT

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