Question

Output work is always less than input work.Why?

Answer 1

Answer:

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work). The output work is always less than the input work because some of the input work is used to overcome friction. MARK ME AS BRAINLIEST

Answer 2

Answer:

Hello mate

Explanation:

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work).

The output work is always less than the input work because some of the input work is used to overcome friction.

Hope it helps