An engine raises 1000kg of water through a height of 60m in 20s. What is the power of the engine? (Take g = 10ms-2>).
A
120,000 W
B
30,000 W
C
333 W
D
300 W
E
30 W
Verified Correct Answer: B.
Physical Principles & Numerical Solution
P = mgh/t = (1000 \(\times\) 10 \(\times\) 60) \(\div\) 20 = 30,000 W.
Source: Myschool Past Questions Archive (Record #23895)