manny8102 manny8102

09-01-2024
Physics

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The breaking strength of a string is 55 kg wt. The maximum permissible speed of a stone of mass 5 kg which is revolved in a vertical circle of radius 4 m with the help of this string is (g=10m/s²):
A. 10 m/sec
B. 15 m/sec
C. 20 m/sec
D. 25 m/sec

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