Answer:
If the fulcrum is exactly in the middle, then moving one end by 1 meter will move the other end exactly by 1 meter. This is the the machine with Mechanical advantage exactly equal to 1.
Step-by-step explanation:
whenever something is too heavy to lift, a ramp can be a solution. As long as the slope of the ramp is gentle enough, and the object has something like wheels that roll, heavy weights can be lifted from here to there.
Mechanical advantage is the ratio of output to the input force. It can also be described as the ratio of load to the effort applied.