A simple machine with an efficiency of 75% lifts a load of 5000N when a force of 500N is applied to it. Calculate the velocity ratio of the machine by Sunday | May 22 | Physics WAEC | 0 comments A. 10.0 B. 13.3 C. 17.5 D. 25.0 Correct Answer: Option B B. 13.3 Users Also Read These:A machine of efficiency 80% is used to lift a box.…What effort will a machine of efficiency 90% apply…A machine is used to lift a load of 20 N through a…A machine of velocity ratio 6 requires an effort of…The velocity ratio and efficiency of a system of…