2019-2020
1
1 kg 3
N (g10 m/s 2) ( )
A B C D
2 3
( )
A
B
C
D
32016 400 43 03
17 400m 43 03
A B
C D
4
v-t
A OA
B AB
C 0-3s 6-9s
D 6-12s
52018 11 6 11 10 , , 20
,20 20
A2018 11 6 11 10
B 20
C -20
D -20
6 , , ,
. , ( )
