CBSE - IX - Physics - Work and Energy
Two labourers weighing 50 kg and 70 kg respectively carried a amss of 50 kg each over a height of 5m in 1 min.
i. Calculate the P.E gained by each of them.
ii. Find the ratio of work done upon the mass by each worker.
iii. What will power exerted by them on the load.
iv. What will be the energy transformation taking place.
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