Module 30- collisions 5) As shown in the figure below, object m1 = 1.75 kg starts at an initial height h = 0.250 m and speed V1 = 4.00 m/s swings downward and strikes (in an elastic collision) object m2 = 4.55 kg which is initially at rest. m 4.00 m/s h 12 A) Determine the speed of m (in m/s) just before the collision. m/s B) Determine the velocity (magnitude in m/s and direction) of each ball just after the collision (Assume the positive direction is toward the right. Indicate the direction with the sign of your answer.) M1: M2: m/s m/s C) Determine the height (in m) to which each ball swings after the collision (ignoring air resistance). M1: M2: m m 6) A thin block of soft wood with a mass of 0.072 kg rests on a horizontal frictionless surface. A bullet with a mass of 4.67 g is fired with a speed of 643 m/s at a block of wood and passes completely through it. The speed of the block is 15 m/simmediately after the bullet exits the block. A) Determine the speed (in m/s) of the bullet as it exits the block. m/s B) Determine if the final kinetic energy of this system (block and bullet) is equal to, less than, or greater than the initial kinetic energy. equal to the initial kinetic energy - less than the initial kinetic energy greater than the initial kinetic energy C) Verify your answer to part (b) by calculating the initial and final kinetic energies of the system in joules. Ki KEf= ] J