An electric motor drives a windless which hauls up a crate A of weight W = 500 kg up an inclined plane through a height of 10 m in 2 minutes. The torque acting on the windless is 25 kgm and the drum of the windless makes 30 rpm. The efficiency of the inclined plane would be

Applied Mechanics Mcqs

A.26.50%
B.41%
C.53.05%
D.61%
E.66%

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