A stone with a mass of 0.9 kg is attached to one end of a string 0.8 m long. The string will break if its tension exceeds 500 N. The stone is whirled in a horizontal circle on a frictionless table top. The other end of the string is kept fixed. Find the maximum speed of the stone, it can attain without breaking the string.
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WORK, ENERGY AND POWER
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