Question

1. A 3-kg ball has a velocity of 2 m/s to the left just before it strikes a wall and bounces back with a velocity of 2 m/s to the right. What is the impulse on the ball? (a) 0 kg m/s (b) 6 kg m/s to the right (c) 6 kg m/s to the left (d) 12 kg m/s to the right (e) 12 kg · m/s to the left

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