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A certain machine uses an effort of 400N to raise a load of 600N. If the efficiency of the machine is 75%, determine its velocity ratio.

Answer Text:
#E = (M.A)/V.R=0.75#
#M.A =( LOAD)/(EFFORT) =600/400#
#0.75 =1.5/(V.R)#
#V.R =1.5/0.75 = 2#