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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.
# E; u* x4 p4 G2 \1 e6 G, i/ PWhen no net force act on a object, the object will travel with constant velocity.
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, ~( `8 R8 a# O3 vSince the water on the earth will be attracted by gravitational force, it will fell on the ground.
( F' g: N* D1 h! k R; n, W8 o1 G' q. k0 |
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) |
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