时刻t/s |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
位置坐标x/m |
0 |
0.5 |
2 |
4.5 |
8 |
12 |
16 |
20 |
瞬时速度v/(m·s-1) |
1 |
2 |
3 |
4 |
4 |
4 |
4 |
4 |