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29-12-2023
Physics

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A wire elongates by 2 mm when a load W is hung from it. If this wire goes over a pulley and two weights W1 at the two ends of l, then the elongation will be:
(a) More than 2 mm
(b) Less than 2 mm
(c) Exactly 2 mm
(d) Depend on the value of W1

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