answer these questions 3 and 4

\f4 2 points A platform of mass 245 kg that is suspended off the edge of an oil rig is shown in the figure. The pin joint at A and the cable joining the platform at B support the platform in a horizontal position. The point C is located vertically above A. The position of the centre of mass of the platform is indicated by point G. Calculate the tension T in the cable in Newtons. 0 = 74 , c = 1.03 m Platform moss = a kg B c n -1.40 m- 0.8 m Type your answer..3 3 points For the bent pipe shown in the figure, it is sought to replace the system of three forces with a single force-couple system located at point O. Enter the value of the resultant couple in Nm (take the counter-clockwise direction to be positive). a = 352 N, b = 152 N b 50 N 0.25 m O - x 0.25 m 0.25 m 0.2 m a Type your answer. 4 2 points A platform of mass 245 kg that is suspended off the edge of an oil rig is shown in the figure. The pin joint at A and the cable joining the platform at B support the platform in a horizontal position. The point C is located vertically above A. The position of the centre of mass of the platform is indicated by point G. Calculate the tension T in the cable in Newtons. 0 = 74, C = 1.03 m