stupid X

i believe that can be easily explained by newton first law.* _0 u0 n3 U0 H$ x( o6 x) H/ l
When no net force act on a object, the object will travel with constant velocity.
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2 N2 s7 E8 z' U% e3 A$ ?Since the water on the earth will be attracted by gravitational force, it will fell on the ground.2 ~& ^; a; R/ U" ~$ x
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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)