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In terms of impulse, how can a karate expert break a stack of bricks with their bare hand? Part 3: Problems. 1. A 4 kg cat runs at a speed of 3 m/s. What is its momentum? 2. A 1000 kg car moving 39 m/s applies a braking force of 20 N how long does it take for it to come to a stop? 3. A 900 kg cannon shoots a 5 kg cannonball at 80 m/s. ................
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