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An effort of 10 N is applied at the free end of the string passing on a single movable pulley system with a load attached to it.  The weight of the movable pulley is 3 N.  The frictional forces are negligible.(a) Calculate the mass of the load being raised.(b) On a diagram of the pulley system with strings, mark the directions of the forces, effort E, tension in the strings T and the load L.(c) Calculate the tension T in anyone segment of the string.(d) Also calculate V.R, M.A and efficiency.  Take g = 10 ms-2

Asked by Topperlearning User 4th June 2014, 1:23 PM

Given : E = 10 N, W = 3 N, mass of load = ?, T = ? V.R, M.A and

E = T, L + W = 2T = 2E;  L = 2E - W = 20 - 3 = 17 N

(a) Mass of load = 17 / 10 = 1.7 kg

(b)

(c)T = E = 10 N

(d)

Answered by Expert 4th June 2014, 3:23 PM
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