stupid X

i believe that can be easily explained by newton first law.
' |9 J' K5 a4 h4 f$ H; F5 ~( }When no net force act on a object, the object will travel with constant velocity.2 D# y- e" t+ y$ J3 j4 {+ o' Y4 @

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- i7 T& }) n5 ?" n. `8 G1 [1 PSince the water on the earth will be attracted by gravitational force, it will fell on the ground.
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( }: T; s* }" o- i. gBut 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)