1500N
500N
4166N
750N
Correct answer is A
efficiency = (M.A / V.R) x 100/1 => 60/100 = M.A/5 ∴M.A = (60 X 5) / 100 = 3 But M.A = Load/Effort; => 3 = Load/500 ∴Load = 500 x 3 = 1500N
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