1.

IN_A_LIFTING_MACHINE,_THE_EFFORT_REQUIRED_TO_LIFT_LOADS_OF_200N_AND_300N_WERE_50N_AND_60N_RESPECTIVELY._IF_THE_VELOCITY_RATIO_OF_THE_MACHINE_IS_20_DETERMINE_EFFORT_LOSS_IN_FRICTION_AT_200_N.?$

A. 30 N
B. 35 N
C. 40 N
D. 45 N
Answer» E.


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