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Level II (Conceptual)The mass of a pendulum bob is 100 g, anthe string is 1 m long. The bob is held so ththe string horizontal. It is then allowed to falFind the K.E. when the string makes an angof (a) 0"(b) 30° with the vertical(Ans. (a) 98 x 10% erg: (b) 84 x 104eOT "

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