Question

the actual mechanical advantage of a machine is always greater than the ideal mechanical advantage. true false

Explanation:

The ideal mechanical advantage (IMA) is calculated without considering friction. The actual mechanical advantage (AMA) takes friction into account. Since friction reduces the efficiency of a machine, AMA = \(\frac{Output\ force}{Input\ force}\) and IMA=\(\frac{Distance\ input}{Distance\ output}\). Due to friction, the output force in AMA is less than what it would be in an ideal (friction - less) situation (IMA). So, \(AMA=\frac{F_{out}}{F_{in}}\) and \(IMA = \frac{d_{in}}{d_{out}}\) (from \(F_{in}\times d_{in}=F_{out - ideal}\times d_{out}\) in an ideal case). Because of friction \(F_{out}

Answer:

FALSE