Physics, 10.12.2021 19:10, yolomcswaggin20

The distance from a to b is 20 cm, and the distance from a to c is 80 cm. What is the mechanical advantage of the system if effort is put on the longer arm? A. 0.25
B. 4
C. 40
D. 80

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The distance from a to b is 20 cm, and the distance from a to c is 80 cm. What is the mechanical adv...