- #1
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I know it is 9.8 m/s^2. However, we're covering Kinematics, and I'm just wondering how you know whether you use -9.8 or +9.8.
At first, I thought that if the object was traveling up, you would use +9.8 and if it was going down, you would use -9.8. But I just went over a problem that used +9.8 when an object was dropped.
So now I'm really confused. ~_~
At first, I thought that if the object was traveling up, you would use +9.8 and if it was going down, you would use -9.8. But I just went over a problem that used +9.8 when an object was dropped.
So now I'm really confused. ~_~