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Q. A 12g bullet is fired horizontally into a 100g wooden block initially at rest on a horizontal surface. After impact, the block slides 7.5m before coming to rest. if the coefficient of kinetic friction between block and surface is .650 what was the speed of the bullet immediately before impact?

Q. What is the maximum speed with which a 1200-kg car can round a turn of radius 60.0m on a flat road if the coefficient of friction between tires and road is 0.65?

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