On a machine efforts of 100 N and 160 N are required to lift the loads of 3000 N and 9000 N respectively. Find the law of the machine.

On a machine efforts of 100 N and 160 N are required to lift the load

1.	On a machine efforts of 100 N and 160 N are required to lift the loads of 3000 N and 9000 N respectively. Find the law of the machine.
A.	P = 1/100W + 60
B.	P = 1/100W + 70
C.	P = 1/100W + 80
D.	P = 1/100W + 90
Answer» D. P = 1/100W + 90

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