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Q. Three uniform thin rods, each of length L = 19 cm, form an inverted U. The vertical rods each have a mass of 12 g; the horizontal rod has a mass of 44 g. What are (a) the x coordinate and (b) the y coordinate of the system's center of mass

Q. A bullet of mass 13 g is fired with an initial speed of 283 m/s into a wooden block that is initially at rest. The bullet becomes lodged in the block, and the two slide together on the floor for a distance of 1.1 m before coming to rest . If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block?

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