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(i) Velocity ratio = 2
(ii) To change the direction of the effort
(iii) 80 = $\frac{M.A.}{V.R}$ x 100 = 1.6
But M.A = $\frac{Load(L)}{effort(E)}$ = 1.6 x 500 = 800N
johnmulu answered the question on May 16, 2017 at 08:40
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