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for a machine, the input force is 30 N, and the input distance is 2 m. Factoring in the effect of friction, what must be true about the work output?

A. It must be greater than 60 J
B. It equals 60 J.
C. It must be less than 60 J

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MathPhys

Answer:

C. It must be less than 60 J

Explanation:

The work going into the machine is the product of the force and distance:

W = Fd

W = (30 N) (2 m)

W = 60 J

The work out of the machine is less than this due to the frictional losses.

dalyadanger104p621cq

Answer:

C. It must be less than 60 J

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