The Charpy Impact test is used in materials testing to determine the energy absorption characteristics of a material during impact. This test is performed by releasing a 60 lb pendulum and allowing it to strike specimen at 5 (0 = 45 degrees). The pendulum has a mass moment of inertia la = 9.43 slug-ft about pin A. Find the reactive forces A, and A: A) Just after pendulum is released B) Just before pendulum strikes specimen HINT: You must use kinematic relation wdw = ade as a 4th equation Ans: part A: Part B FM A = 42.4 lb A = 9.97 lb A = 103.4 lb A = 0.0 lb 135 2