Asked by Charles
an effort of 250N is applied to a pulley system consisting of two fixed and two movable pulleys to lift a load to a height of 20m. if the efficiency of the system is 60% and the work done in overcoming friction is 3000j, calculate
i) the mechanical advantage of the system
ii) the weight lifted
iii) the work done by the effort
i) the mechanical advantage of the system
ii) the weight lifted
iii) the work done by the effort
Answers
Answered by
Daniel
Answer
Answered by
Thomas
Please someone help
Answered by
Theophilus
57
6897
6
6897
6
Answered by
Emirates
👎
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