[填空题]
A baseball pitcher throws -hi/:ox 0eay ia baseball wlc ak pm6mfmi49fh1bhbk4 ,yl96lk4c 8u h;0fith a speed of 44 m/s In throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 m, from behind the body to the point where it is released (Fig. 2–41). Estimate the average acceleration of the ball during the throwing6lfk,m 6l091chkubl4h4ki; fhpm b4m ayfc98 motion. $m/s^2$
