Question

If a machine has 100% efficiency, it means that
output work is equal to input work.
% output force is equal to input force.
output work is twice the input work.
output force is twice the input force.

Answer 1

Answer:

The answer should be A, because efficiency = (effective work)/(executed work) * 100%

Explanation:

Answer 2

Answer:

A (i just answered it and got it right :)

Explanation: