A machine uses an input force of 400 N to produce an output force of 800 N. What is the mechanical advantage of this machine? MA= F output/ F input

A) 0.5
B) 32
C) 2
D) 320,000

The mechanical advantage (MA) of a machine is given by the formula MA = F output / F input. Substituting the given values, we have MA = 800 N / 400 N = 2.

Therefore, the mechanical advantage of this machine is 2.

The correct answer is C) 2.