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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.
. u# Y* U8 J, s1 O# aWhen no net force act on a object, the object will travel with constant velocity.1 |9 H$ x7 K' b; \$ X. D' [
& T; ~# o. s" }' V, j7 J
" W! [1 k6 v& G4 v" ]Since the water on the earth will be attracted by gravitational force, it will fell on the ground.
0 T- v3 ]2 F) `1 n
- E1 [0 c. z# k6 SBut 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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