Question

A machine which is 70% efficient raises a 10kg body

Answer 1

Complete the question.... buddy....,!

Answer 2

F =mg

m=10 kg

g=10 m/s^2

F=100 N

machine is 70% efficient

then,

= [100×100]/70

= 142.8 N force is used to pick a 10kg object.

Please mark the answer as brainliest.