- #1
LegendF
- 29
- 0
Hello there, I'm feeling really confused regarding this subject.
If I place my zero-level at the water, and the positive direction upwards, that mean that the cliff is at +20m. If I then want to drop something off this cliff, then it is also simply traveling -20m downwards? Is this correct?
If I then define positive direction as down instead, does that mean that the cliff is at -20m, and if I drop something from here then it has to travell +20m?
If I place my zero-level at the cliff which is 20m instead, and assume that the positive direction is down, then it has to travell 20m to end into the water?
If I place my zero-level at the cliff and state that negative direction is down, then I can say that it has to travell -20m?
So it's all about what you put your positive and negative direction as?, if you assume that the positive direction is +50m up from the zero-level, then it's also -50m down to the zero-level from the same point?
Did I get this correct?
Happy New Year! :D
If I place my zero-level at the water, and the positive direction upwards, that mean that the cliff is at +20m. If I then want to drop something off this cliff, then it is also simply traveling -20m downwards? Is this correct?
If I then define positive direction as down instead, does that mean that the cliff is at -20m, and if I drop something from here then it has to travell +20m?
If I place my zero-level at the cliff which is 20m instead, and assume that the positive direction is down, then it has to travell 20m to end into the water?
If I place my zero-level at the cliff and state that negative direction is down, then I can say that it has to travell -20m?
So it's all about what you put your positive and negative direction as?, if you assume that the positive direction is +50m up from the zero-level, then it's also -50m down to the zero-level from the same point?
Did I get this correct?
Happy New Year! :D