A 21 kg block of wood rests on a long tabletop a 118 g, Ask an Expert

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A 2.1 kg block of wood rests on a long tabletop. A 11.8 g bullet moving horizontally with a speed of 156 m/s is shot into the block and sticks in it. The block then slides 26.4 cm along the table and stops. Find the magnitude of the frictional force between the block and the table.

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