Question

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

Answer 1

C. It must be less than 60 J

Answer 2

C. It must be less than 60 J

Step-by-step 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.