001 10.0points A force Fqgoapplied to a dumbbell for a 2. y time interval At, in case P at the center of mass of the dumbbell, and in case Q at one end of the dumbbell. In which case is the resulting nal center- of-mass velocity of the dumbbell greater? motor is the only force acting. 4. 3" 1. It is impossible to answer unless we know specically how ICM differs from I about the axis through the upper end of the dumb- bell. 2. case Q 3. tom is the same in both cases. 4. case P 002(part 10f2)10.0points Henry serves a volleyball, striking the initially motionless ball a bit above the centerline with the horizontal FORCE shown in the dia- gram. J' x F F W W F F E Which of the following describes the motion of the center of the volleyball? 003(part 2of2)10.0points