A machine requires 1000J of work to raise a load of 500N through a vertical distance of 1.5m. Calculate the efficiency of the
-
A.
80% -
B.
75% -
C.
50% -
D.
33%
Correct Answer: Option B
Explanation
(frac{500 times 1.5}{100.0}) x 100%
= 75%
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