The input force is 245 n and the output force is 245 n calculate the ideal mechanical advantage of the seesaw (science)

The ideal mechanical advantage (IMA) of a device is the mechanical advantage with the assumption there are no frictions acting in the machine. In this case, the IMA is equal to

where  is the load (the output force of the machine) while  is the force applied in input.

In our problem the output force is 245 N and the input force is 245 N, so the ideal mechanical advantage is

B) erini just took the test and it is correct