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Problem 1 An 8.0-g bullet is fired horizontally into a 9.00-kg cube of wood, which is at rest, and sticks in it. The cube is

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Problem 1 An 8.0-g bullet is fired horizontally into a 9.00-kg cube of wood, which is at rest, and sticks in it. The cube is free to move and has a speed of 40 cm/s after impact. Find the initial velocity of the bullet.Problem 2 A 2.0-kg brick is moving at a speed of 6.0 m/s. How large a force F is needed to stop the brick in a time of 7.0 x 10-4 s

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