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 | Mar 24 | 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:A handbag containing some load weighing 162N is…The pitch of a screw jack is 0.45cm and the arm is…What effort will a machine of efficiency 90% apply…The velocity ratio and efficiency of a system of…A spring balance, which is suspended from the roof…