A 17g bullet strikes and becomes embedded in a 1.60kg block of wood placed on a horizontal surface just in front of the gun. If the coetlicient of kinetic friction between the block and the surface is 0.34 , and the impact drives the block a datance of 7.7m before it comes to test, what was the murzle spoed of the bullot? Express your answer to two significant figures and include the appropriate units