Question

The amount of force put on a machine is 40N. The result given out by the same machine is 120N. What is the efficiency of the machine?​

Answer 1

Explanation:

The amount of force put kn machine = 40N

The result given out by the same machine = 120N

Answer 2

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°°° Solution °°°

• (a) A machine is a device by which we can either overcome a large resistive force at some point by applying a small force at a convenient point and in a desired direction or by which we can obtain a gain in the speed.

• (b) An ideal machine is a machine whose parts are weightless and frictionless so that which there is no dissipation of energy in any manner. Its efficiency is 100%, i.e. the work output is equal to work input.

• Mark as brain list please