In tae-kwon-do, a hand is slammed down onto a target at a speed of 16 m/s and comes to a stop during the 4.6 ms collision. Assume that during the impact the hand is independent of the arm and has a mass of 0.70 kg. (a) What is the magnitude of the impulse on the hand from the target? ---------- N · s (b) What is the magnitude of the average force on the hand from the target? ---------- N

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