

MCQOPTIONS
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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. | |