Calculate the velocity ratio of a screw jack of pitch 0.2cm if the length of the tommy bar is 23cm? by Sunday | Jan 4 | Physics WAEC | 0 comments A. 230π B. 23π C. 70π D. 140π Correct Answer: Option A A. 230π Users Also Read These:A uniform bar AB is balanced on a knife-edge which…The bar in Tennyson's "Crossing the Bar" is a symbol…If the velocity ratio of a machine is 5. What is its…Write short notes on: (i) Command line (ii) Status…The length of an iron bar is 100cm at 20°C. At what…