A) 19.6 kW
B) 196 kW
C) 0.196 kW
D) 1.96 kW
Correct Answer: D
Solution :
Power of elevator \[=\frac{mgh}{t}\] \[=\frac{300\times 9.8\times (20+20)}{1\times 60}\] \[=5\times 9.8\times 40\] \[=19.6\times 100=1.96kW\]You need to login to perform this action.
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