 
- 帖子
- 118
- 精華
- 0
- 威望
- 69
- 魅力
- 0
- 讚好
- 0
- 性別
- 男
|
6#
發表於 2005-4-5 12:33 AM
| 只看該作者
i believe that can be easily explained by newton first law.
* C3 P/ I4 Q8 K ]' u* W9 q: ]When no net force act on a object, the object will travel with constant velocity.
( ^. G& B9 T, g0 I; g% Q, Z/ U. g2 I* @
* J+ z) D, m* M
Since the water on the earth will be attracted by gravitational force, it will fell on the ground.6 I* Q/ Y4 v0 {6 u/ B. K5 ^
& i2 e! c& ?7 O Q
But in the space, no force is added on the water will u X the ball ,so the water will remain its old velocity(don't move) |
|