Question

You do 25 J of work to move a 4 N object 5 meters. Find your efficiency

Answer 1

Step-by-step explanation:

Answer 2

Efficiency is defined as "it is the ratio of output to the input

input work = 25 J ,

output work = (4 × 5) = 20 J ,

Work =Force × distance moved

= 4 × 5

= 20 J

efficiency (η ) = 20 ÷ 25

= 80%

Efficiency is 80%