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OpenStudy (anonymous):
A block of mass 30 kg is being brought down by a chain. If the block acquires a speed of 40cm/s in dropping down 2m. The work done by the chain during the process will be..??
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OpenStudy (anonymous):
W=Fd = mad =(30 kg) (40 cm/s) (1m/100cm)(2m) = 24
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