The diagram shown represents a block-and-tackle pulley system on which an effort of W Newtons supports a load of 120.0N. If the efficiency of the machine is 40, then the value of W is?

by | Oct 30 | Physics JAMB | 0 comments

A. 28.0
B. 48.0N
C. 233.0N
D. 50.0N

Correct Answer:

Option D – 50.0N

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