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6#
發表於 2005-4-5 12:33 AM
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i believe that can be easily explained by newton first law.& ?& k h7 {6 x
When no net force act on a object, the object will travel with constant velocity.
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" m# _6 k. c1 A( n2 [6 p8 c6 I+ C
Since the water on the earth will be attracted by gravitational force, it will fell on the ground.
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& \. @9 C! \, }5 n& kBut 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) |
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