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21. Two blocks of masses 2 kg and 4 kg are hanging with the help of massless string passing over an Veal pulleyinside an elevator. The elevator is moving upward with an acceleration The tension in the string connectedbetween the blocks will be (Take g = 10 mis?).(1) 40 N(2) 60N(3) 80 N(4) 20 N

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