1 point 59 A professional boxer hits his opponent with a 919 N horizontal blow that lasts 0.218 s. The opponent's total body mass is 107 kg and the blow strikes hlm near his center of mass and while he is motionless in midair. Determine the opponent's final velocity (in m/s) after the blow. Type your answer... a 1 point 9 In tae-kwondo, a hand is slammed down onto a pine board at a speed of 15 m/s and comes to a stop during the 4.8 ms collision. Assume that during the impact the hand is independent of the arm and has a mass ol 2 8 kg, What is the magnitude of the average force in newtons 0n the hand from the target? Type your