问题
选择题
我国著名篮球运动姚明在原地拍球,球从1.5m高处落下,又被地板弹回,在离地1m处被接住。则球通过的路程和位移的大小分别是[ ]
A.2.5m,2.5m
B.2.5m,0.5m
C.1.5m,1m
D.1.5m,0.5m
答案
答案:B
我国著名篮球运动姚明在原地拍球,球从1.5m高处落下,又被地板弹回,在离地1m处被接住。则球通过的路程和位移的大小分别是[ ]
A.2.5m,2.5m
B.2.5m,0.5m
C.1.5m,1m
D.1.5m,0.5m
答案:B