object my = 1.70 kg starts at an initial height = 0.265 m and speed v=4.00 m/s, swings downward and strikes (in an elastic collision) object m = 4.40 kg which is initially at rest. 4.00 m/s (a)Determine the speed of m (in m/s) just before the collision. (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.) (c) Determine the height (in m) to which each ball swings after the collision (ignoring air resistance). 10. A rope is wrapped around the rim of a large uniform solid disk of mass 155 kg and radius 2.60 m. The horizontal disk is made to rotate by pulling on the rope with a constant force of 195 N. If the disk starts from rest, what is its angular speed in rev/s at the end of 1.65 s?