|
|
|
|
無希望無失望
|
|
|
|
|
發表於 2010-5-4 00:40
| |
|
| |
|
First law: Every body remains in a state of rest or uniform motion unless it is acted upon by an external unbalanced force.
|
||
.gif)
|
|
|
|
|
|
|
無希望無失望
|
|
|
|
|
|
|
| |
|
First law: Every body remains in a state of rest or uniform motion unless it is acted upon by an external unbalanced force.
|
||
|
|
|
