[填空题]
A baseball player hits a foul ball straight up intox4d4cz1 v ipq3 the air. It leaves the bata14(-zynrl /- wbo2ipumcom7 egi( o8 with a-w8g/mlipeu rba(yn7oi2mo 4 -(1ocz speed of $120 \; km/h$. In the absence of air resistance, how fast will the ball be traveling when the catcher catches it? $km/h$ (please only fill in numerical value in the blank)
