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
Correct Answer: Option B
Explanation
P = mgh/t = (1000 (times) 10 (times) 60) (div) 20 = 30,000 W.