what is meant by the efficiency of a machine is 80% Question what is meant by the efficiency of a machine is 80% in progress 0 Physics Thanh Thu 5 years 2021-07-22T16:33:10+00:00 2021-07-22T16:33:10+00:00 2 Answers 24 views 0
Answers ( )
Answer:
It means that 80% of our effort is converted to useful whereas 20% of our effort is wasted to overcome frictional and gravitational force.
Answer:
It means that the total energy produced by the machine is 80 percent and remaining 20 percent is wasted in the term of heat deu to friction.
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