8 5m 6m/s 2kg g
10m/s2
A120W B160W C180W D200W
9 P f
A f
B f O
C f P O
D P O f
10 G
A H t
B T
C D T
D r T
11
A1/4 B 1/2 C 4 D 2
12
A B C D
13 81 9
7.9km/s
14 m A E A
30 _______ C
15 16m/s 370
16 ABC 210-8 C A B
- 410-6 J 310-8 C A C - 910-6J
______
17 ___________ __________
____________ ____________