A machine of velocity ratio 5 is used in lifting a load with an effort of 500N. If the machine is 80% efficient. Determine the magnitude of load. by Sunday | May 21 | Physics WAEC | 0 comments A. 2500N B. 2000N C. 900N D. 625N Correct Answer: Option B B. 2000N Users Also Read These:The efficiency of a wheel and axle is 100% and the…If the mechanical advantage of a machine is 4. What…A wheel and an axle is used to raise a load whose…What effort will a machine of efficiency 90% apply…If the velocity ratio of a machine is 5. What is its…