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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.7 s6 f( \/ b9 f7 R6 B0 | w
When no net force act on a object, the object will travel with constant velocity.; G P/ q( w L6 V
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: d8 b+ L! x, M) k; CSince the water on the earth will be attracted by gravitational force, it will fell on the ground., A; {' v& v- P2 G) _/ |8 _
7 }1 D$ A" |2 qBut 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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