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29-11-2016
Physics

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What is the efficiency of the machine in Figure 7.2 if the weight of the box is 200 N and required 98 N of effort Force?

A3.3%
B326%
C31%
D10.2%

What is the efficiency of the machine in Figure 7.2 if the weight of the box is 200 N and required 98 N of effort Force? A. 3.3 B. 326 C. 31 D. 10.2 class=

Verified Answer :

Mcawesom Mcawesom

29-11-2016

this question is tricky but the answer is C

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