The windshield of a speeding car hits a hovering insect. Consider the time interval from just before the car hits the insect to just after the impact. (a) For which choice of system is the change of momentum zero? (b) Is the magnitude of the change of momentum of the bug bigger than, the same as, or smaller than that of the car? (c) Is the magnitude of the change of velocity of the bug bigger than, the same as, or smaller than that of the car?