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Original Question
A string under a tension of 48 N is used to whirl a rock in a horizontal circle of radius 2.4 m at a speed of 18.48 m/s. The st...Asked by Lebronie
A string under a tension of 43 N is used to whirl a rock in a horizontal circle of radius 2.1 m at a speed of 15.89 m/s. The string is pulled in, and the speed of the rock increases. When the string is 0.948 m long and the speed of the rock is 59 m/s, the string breaks.
What is the breaking strength of the string? Answer in units of N.
What is the breaking strength of the string? Answer in units of N.
Answers
Answered by
Scott
f = m v^2 / r
f = 43 N * (59/15.89)^2 / (.948/2.1)
f = 43 N * (59/15.89)^2 / (.948/2.1)
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