Click to see additional instructions A large block of wood of mass M = 5.4 kg is hanging from two long cords. A bullet of mass m = 9.5 g is fired into the block. The block and the bullet then swing upward, their center of mass rising a vertical distance h = 6.3 cm before the pendulum comes momentarily to rest at the end of its arc. a. What was the speed of the bullet just before the collision? X X 103 J b. What is the initial kinetic energy of the bullet? 103 J c. How much of this energy remains as mechanical energy of the swinging pendulum? * % Answer Key:6.25 | 6.35, 1.85|1.95, 0.15 0.25