MHT CET Physics question
What is the amount of work done by a person when (i) he holds a mass of 2 kg for 5 second and (ii) he lifts the same mass through 1 meter to keep it on the top of a table? [MHT-CET 2022]
Answer: (C)
Solution
Holding a mass gives no displacement so (i) work is zero, and lifting gives (ii)
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