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A small mass attached to a string rotates on africtionless table top as shown. If the tension in thestring is increased by pulling the string causing theradius of the circular motion to decrease by a factorof 2, the kinetic energy of the mass will[AIPMT (Mains)-2011](1) Increase by a factor of 4(2) Decrease by a factor of 2(3) Remain constant(4) Increase by a factor of 2t of inertia l is rotating in a |
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