Question

what do yu mean by MA of a lever is 3 vr of a lever i 4 and n of a machine is 60%

Answer 1

Answer:

ExplanThe mechanical advantage of a machine is 4. ... Mechanical advantage MA is the ratio of output (generated by the machine) force to input (applied to the machine) force. So MA = 4 means that for example if you apply 100 N then your machine will multiply that force and generate 400 N.

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Answer 2

Answer:

Ma of lever is 3 means that the applied effort can lift 3 times heavier load using the machine. VR of machine is 4 means the effort has to move four times more distance than that of the load distance to lift any load up to a certain height. N of the machine is 60% means that the total energy produced to the machine only 60% is useful and given as output.

Explanation:

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