C
D
6
A2 B3 C4 D5
7 vt
A
B 5s 25m
C 2s 1.5m/s 2
D 2s 3m/s
8
I B II II
B
A I A B
B I A B
C I A B
D I B B
9 t v
X
AXvt/2 B Xvt/2 C Xvt/2 D
10 F=100N
=0.2 m=5kg g=10m/s2
