2019-2020
1 v1 v2v1v2
A 0
B
C
D
2 30N20N
A5N B12N C32N D50N
3 m2m
F L k
A3
F
kB2
F
k
CL3
F
kDL2
F
k
4AB B
2m/s2A AB
A2s B2.5s C4s D3s
5
A
B
C
D
6 m A A
A h A 2m B
B h g