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Unformatted text preview: If the fist is moving at 13 m/s when contact is made and slows to 10 m/s during the punch, how much force is felt? (75 N) 5. Ball 1 has a mass of 3 kg and is moving to the right at 6.00 m/s when it strikes and bounces off Ball 2 which has a mass of 5 kg and is moving at 4.00 m/s to the right. What is the velocity of the two balls after the collision? (3.5 m/s and 5.5 m/s) 6. A 50 gram bullet strikes an 18 kg block of wood sitting on a flat table and becomes embedded. The block (with the embedded bullet) slides 1.6 m along the table and there is a coefficient of static friction of 0.4 between the block and the table. What was the speed of the bullet just before impact? (995 m/s) 7. Where is the CM of the object below? (3.14 m from the left end)...
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 Fall '07
 Winter
 Physics, Force, Friction

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