E MC422_TEST2_2020.pc x + V € → O o file:///C/Users/Muham/Downloads/MC422_TEST2_2020.pdf 2 of 5 10 - +...
E MC422_TEST2_2020.pc x + V € → O o file:///C/Users/Muham/Downloads/MC422_TEST2_2020.pdf 2 of 5 10 - + Fit to page Page view A Reac aliud Add reites E Question #1. (10 marks) 160 mm 800 mm The speed of a rotating system is controlled with a brake as shown. 100 mm The drum A has a mass of 300 kg and a radius of gyration about the centre of rotation of ke-200 mm. The kinetic coefficient of friction between the brake pad and the drum is H=0.50. The drum is 260 mm rotating at 1500 rpm counterclockwise when a force of P-500 N is applied to the brake lever. Determine (a) the frictional force (Fracting on the brake pad, (b) the number of revolutions the drum will rotate before stopping (Note: the 100 mm dimension in the diagram is the vertical distance from the centre of the brake arm in line with point B to the top of the brake pad where it contacts the wheel)