A block of mass 1.9 kg is rest at the edge of a table of height 1 m. A bullet of mass 0.1 kg collides with the block and sticks to it. If the velocity of the bullet is $20 m/s$ in the horizontal direction just before the collision, then the kinetic energy just before the combined system strikes the floor, is (Take, $g=10 m/s^2$) and assume there is no rotational motion and loss of energy after the collision is negligible)