Work Energy And Power Question 187

Question: The average power required to lift a 100 kg mass through a height of 50 metres in approximately 50 seconds would be [SCRA 1994; MH CET 2000]

Options:

A) 50 J/s

B) 5000 J/s

C) 100 J/s

D) 980 J/s

Show Answer

Answer:

Correct Answer: D

Solution:

$ P=\frac{mgh}{t} $ = $ \frac{100\times 9.8\times 50}{50}=980J/s $



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