The disk cam of Problem 11.31 is driven at the constant input shaft speed 2 = 20

The disk cam of Problem 11.31 is driven at the constant input shaft speed ω2 = 20 rad/s ccw.

Both the cam and the follower have been balanced so that the centers of mass of each are located at their respective fixed pivots. The mass and radius of gyration of the cam are 0.075 kg and 30 mm, respectively, and the mass and radius of gyration of the follower are 0.030 kg and 35 mm, respectively. At the instant shown, determine the torque, T12, required on the camshaft to produce this motion.