[填空题]
A bowling ball travel/q4ixrs izmb w(g+c -o+0 rnlt /;)jxiing with constant speed hit)*u 7 vfg0ys9 j,ssefws the pins at the end of a bowling lane 16.5 m long. The bowler hears the sound of the ball hitting the pins 2.50 s after the ball is released from his hands. Why,0fjg 9 7)s vswe*usfat is the speed of the ball? The speed of sound is 340 m/s. m/s
