Confused with this negative average velocity

  • Thread starter Suarden
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  • #1
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EDIT ADDED: I already got it! Thank you for your ideas! :D

1. Homework Statement
If you drive an average velocity of -72.8 Km/h for 55 minutes to a position that is 28.5 KM north of Jollitown, in what position did you start your drive?


I'm confused with this negative average velocity, please help me
 
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  • #2
phinds
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What do you think "negative" means in this context?
 
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What do you think "negative" means in this context?
I think it means that it have a negative velocity, and it opposes the direction at the origin, but I am still confused, I do not know where to start. If you can Provide me the answer I can figure it out how to solve it. Hahays, please help me.
 
  • #4
phinds
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I think it means that it have a negative velocity, and it opposes the direction at the origin, but I am still confused, I do not know where to start. If you can Provide me the answer I can figure it out how to solve it. Hahays, please help me.

Draw a graph. Show the end point on the graph. Where do you have to start to end up there if you are going in a "negative" direction relative to the origin? Do you start North, South, East, or West of the end point?
 
  • #5
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Draw a graph. Show the end point on the graph. Where do you have to start to end up there if you are going in a "negative" direction relative to the origin? Do you start North, South, East, or West of the end point?
Is this Right? The starting position starts in (North) but it travels downward, that's why it is negative, so for the initial position of the car I need to compute the distance travelled in 55 minutes and then add it to the 28.5KM? If I only base my answer on the Y axis, does my negative indicates that I travel downward (backward) so the car travels going through the Origin Point? which is the intersection of X and Y axis in the cartesian plane?
 
  • #6
phinds
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Do not erase original posts on this forum !!!!
 
  • #7
Redbelly98
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Do not erase original posts on this forum !!!!
fyi, the original post has been restored.
 

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