Question #4fb12
1 Answer
May 15, 2016
d. Energy
Explanation:
Work is a form of energy.
When we say that work output can never exceed input,
it is in the context of mechanical energy.
If the converse of the above statement were true that
work output could exceed input,
it would imply that we could create work or energy out of nothing.
We know that we can not create energy, it can be changed from one form to another. Hence, option d is the correct option.