a bucket filled with water weighing 20kg raised from a well of depth 20m.if the linear density of the rope is 0.2kg per meter l, the amount of work done is? (g=10m/s)
(1) 4000J
(2)4040J
(3) 4400J
(4) 4200J
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The answer is 4200J
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yasmin107:
umm thanks but the answer is supposed to be (3).4400J
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