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A bullet of mass m = 38 g is fired into a wooden block of mass M = 5 kg. The block is attached to

A bullet of mass m = 38 g is fired into a wooden block of mass M = 5 kg. The block is attached to strings of length 3.06 m. The bullet is embedded in the block, causing the block to then swing as shown in the figure. If the block reaches a maximum height of h = 1 m, what was the initial speed of the bullet?

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