A machine cannot multiply
(a) forces
(b) distances.
(c) energy
(d) All of these.
The correct option for the statement, “A machine cannot multiply.”
Answer to Problem 10RAT
The correct option for the statement, “A machine cannot multiply” is option (c).
Explanation of Solution
A machine is simple equipment utilized to multiplicate the forces or change the direction. All this equipment employs the law of conservation of energy. Considering an example of the simplest machine, that is a lever. When an individual works on it, by pushing one end of the lever, the other side's load rises. In this case, if friction force is neglected, the input and output work will be equivalent. As the work is equal to the distance multiplied by force. This means that a machine can multiply force as well as distance. But a machine cannot produce more as energy as output when less energy is provided as input.
Conclusion:
Therefore, the correct option for the statement, “A machine cannot multiply” is option (c).
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