Question A jack requires an input effort of 21 N to raise a load of 185 kg…

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Question A jack requires an input effort of 21 N to raise a load of 185 kg….  A jack requires an input effort of 21 N to raise a load of 185 kg. If the distance moved by the effort is 1.2 m and the load is raised through a distance of 7mm find; (a)the mechanical advantage  (b)the velocity ratio  (c)the efficiency  (d)the work done overcoming the friction Engineering & Technology Mechanical Engineering ENGG 2767P Share QuestionEmailCopy link

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