What is the calculated AMA if an ideal IMA is 5 and the effort required is 20 N while the load is 80 N?

To determine the calculated Actual Mechanical Advantage (AMA), we can use the formula for AMA, which is the ratio of the load to the effort. In this case, the load is 80 N and the effort is 20 N. Therefore, the AMA can be calculated as follows:

AMA = Load / Effort

Substituting the given values:

AMA = 80 N / 20 N

AMA = 4

This shows that for every unit of work applied as effort, the machine can lift 4 units of load.

The ideal Mechanical Advantage (IMA), which is given in the question as 5, represents the maximum possible advantage in a frictionless scenario. However, the actual mechanical advantage considers real-world factors like friction and efficiency, which is why the AMA can differ from the IMA. In this scenario, the AMA of 4 indicates that the machine is effectively providing a fourfold advantage in terms of force applied versus force lifted, which is consistent with mechanical principles.