A $9\mathrm{.}800-$g bullet is fired into a stationary block of wood having mass m $=5\mathrm{.}080$ kg$.$ The bullet imbeds into the block. The speed of the bullet$-$plus$-$wood combination immediately after the collision is $0\mathrm{.}5950$ m$/$s$.$ What was the original speed of the bullet? $($Express your answer with four significant figures.$)$

Note that after the collision the bullet is imbedded in the block so that both are moving with the velocity $0\mathrm{.}595$ m$/$s$.$