Question

PLZ HELPPPP

Every real machine
must be more than 100 efficient
must be less than 100% efficent
mist be equal to 100% efficent​

Answer 1

every real machine must be less than 100 because of the force that overcome friction

Answer 2

Step-by-step explanation:

It has to be less than 100% efficient. There is always some cost in changing one form of energy to another especially if work is involved.