A. 20N
B. 25N
C. 40N
D. 100N
Correct Answer:
Option C = 40N
Explanation
VR = 5:1 or 5
Load = 20kg or 200N
MA = 200E
Efficiency% = MAVR∗100
100% = 2005E∗100
5E = 200
E = 40
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