Motion Distance-Time graphs

katelyn_1025

New member
Joined
May 12, 2019
Messages
1
hi,
Just wondering if you can have a negative distance on a distance time graph (a negative sloping line)?
also can you find displacement on a distance time graph?
Thanks
 

LCKurtz

Junior Member
Joined
May 3, 2019
Messages
70
hi,
Just wondering if you can have a negative distance on a distance time graph (a negative sloping line)?
also can you find displacement on a distance time graph?
Thanks
I'm guessing you are confusing distance and position. If \(\displaystyle x(t)\) is the position of an object at time \(\displaystyle t\), then \(\displaystyle x(b) - x(a)\) is the change in position from time \(\displaystyle a\) to time \(\displaystyle b\). This may be negative or positive depending on whether the object is moving in a positive direction. \(\displaystyle x(b) - x(a)\) will be the distance traveled only if the object moved exclusively in the positive direction during that time. If the object ends up where it started, the change in position is \(\displaystyle 0\), but you probably wouldn't want to say the distance traveled was \(\displaystyle 0\).
 

LCKurtz

Junior Member
Joined
May 3, 2019
Messages
70
To the moderator: Please stop with the delayed postings.
 

MarkFL

Super Moderator
Staff member
Joined
Nov 24, 2012
Messages
1,819
To the moderator: Please stop with the delayed postings.
Our administrator has configured the forum software settings such that users with less than a certain number of posts require their posts to be approved by the moderating staff. It is an anti-spam measure we have taken. :)
 
Top