Question 2 (15 points): In the mechanism shown below, the crank AB is balanced while links BC and DC are uniform rods of mass equal to 1 kg each. The crank turns counterclockwise (CCW) about A with a constant angular velocity of AB = 100 rad/s. The dimensions of the mechanism are as follows: AB = 2 cm BC= 4.2 cm DC=3 cm EC 4.2 cm AD = 5 cm A kinematic analysis has yielded the following data: M- 2 cm 30 D WBc =44.2 rad/s CW asc=2814 rad/s CCW Wpc=47.5 rad/s CCW apc=5315 rad/s CCW At the instant shown, a tensile force of 10 N exists in the light rod EC. Determine the following: a) (7 points) The D'Alembert force set for links BC and DC. b) (8 points) The magnitude of the bearing reactions at A and D, and the balancing torque on the crank AB. B 135 60 90 D