What do you mean by MA Of a lever is 3, VR of A lever is 4 and n of a Machine is 60%?
1 answer:
Answer:
MA of lever is 3 means that the applied force can lift 3 times heavier load using that machine.
VR of a lever is 4 means the effort has to move 4 times more distance than that of load distance to lift any load up to certain height.
efficiency of 60% means that 40% of energy is wested due to friction, heat energy.
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C. is the correct answer. I hope this helps :)
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I believe the correct would be c. : )
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