A) 150 W
B) 750 W
C) 500 W
D) 250 W
Correct Answer: A
Solution :
Here, mass, m = 50 kg Height of the staircase, \[h=120\times \frac{25}{100}=30m\] Time taken to climb \[\text{= 1 min 40 sec = 100 s}\] We know, Power, P \[\text{=}\frac{\text{Work done}}{\text{Time taken}}=\frac{mgh}{t}\] \[=\frac{50\times 10\times 30}{100}=150W\]You need to login to perform this action.
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