A machine had a mechanical advantage of 4.5 what force is out out by the machine if the force applied to the machine is 800n

A. 0.006n

B. 180n

C. 805n

D. 3600n

Answer;

D. 3600 N

Explanation;

Mechanical advantage is the ratio of force output from a machine divided by the force input into the machine.

That is;

Mechanical advantage = Output Force/Input Force

In this case;

Input force = 800 N

Thus; Output force = M. A * input force

= 4.5 * 800

= 3600 N

Therefore; the output force by the machine is 3600 N