[填空题]
A baseball (m=140kg) traveling 32m/s moveqzi 0/o82yk ygczz-*ds a fielder’s glove backward 2o sh /g,v sjp-us )p 4,j)dufm+m0bgo25 cm when the ball is caught. What was the average force exerted by tfm)uopsh + o, -ssjv,d 2g4 bpumj0)g/he ball on the glove? N
