Asked by Chigozie

Topic:machine,a block and tackle of 6 pulleys is used to raise a load of 300N steadily through a height of 30m.if the work done against friction is 2000J. calculate:the work done by effort,the efficiency of the system,the applied effort.
Answered by bobpursley
I will be happy to critique your thinking on this.
Answered by Ukasha Muhammad
what effort would be needed to lift a load of 100n
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