The handle of a screw jack is 35 cm long and pitch of the screw is 0.5 cm. What force must be applied at the end of the handle to lift a load of 2000N, if the efficiency of the jack is 30% [π = 22/7]? By: Sunday|Published on: Mar 24|Categories: Physics WAEC| 0 comments A. 152.0N B. 132.0N C. 15.2N D. 440.0N Correct Answer: Option C = 15.2N Users Also Read These:The efficiency of a wheel and axle is 100% and the…Calculate the velocity ratio of a screw jack of…A simple machine with an efficiency of 75% lifts a…A block and tackle system has six pulleys. a force…The pitch of a screw jack is 0.45cm and the arm is…SEE ALSO In a nuclear reactor, electricity can be generated through the following processes. Arrange the processes in the correct order.