17-87. The 100-kg pendulum has a center of mass at G and a radius of gyration about G of kG = 250 mm. Determine the horizontal and vertical components of reaction on the beam by the pin A and the normal reaction of the roller B at the instant 0 = 90 when the pendulum is rotating at w=8 rad/s. Neglect the weight of the beam and the support. *17-88. The 100-kg pendulum has a center of mass at G and a radius of gyration about G of kG = 250 mm. Determine the horizontal and vertical components of reaction on the beam by the pin A and the normal reaction of the roller B at the instant 0 0 when the pendulum is rotating at = w=4 rad/s. Neglect the weight of the beam and the support. A 1 m 0.6 m 0.75 m G 0.6 m Probs. 17-87/88 B