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OpenStudy (shubhamsrg):
a chain of uniform mass m and length l is placed on a horizontal table such that 1/4th of its length hangs below the table. Find the work done in pulling whole chain upwards.
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OpenStudy (shubhamsrg):
what my attempt was |dw:1357200851533:dw| W = (mg/4)(l/4) = mg/16 but the final ans is 1/2 of this,,what am i missing ?
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