What is the magnitude of the couple which acts on a rotating circular disc of radius 2m; if a constant tangential force of 2N is responsible for the rotation. by Sunday | Nov 6 | Physics JAMB | 0 comments A. 15Nm B. 25Nm C. 3Nm D. 4Nm Correct Answer: Option D – 4Nm Users Also Read These:An object of mass m moves with a uniform speed v…A force acts on a body for 0.5s changing its…The magnitude of the gravitational force between two…One major difference between disc plough and disc Harrow is?A body weighing 10N moves with a speed of 5ms-1 in a…