 
- 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.
$ s# @+ A6 D. S0 j. tWhen no net force act on a object, the object will travel with constant velocity.
" ?9 p2 g* f0 }- r9 O
9 K/ o* J, u1 l8 p: C: c5 @
! U8 E$ l, Y/ L2 l6 tSince the water on the earth will be attracted by gravitational force, it will fell on the ground.
1 K( y( ~3 Q- Q& ~) B( Y. l3 d5 M, X( {7 ~
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) |
|