where is point C?
|dw:1328484223243:dw| so at point B, the ant is 62-3 units away from the origin. i.e. it is positioned at x=59
do you know how to find the distance and displacement from point c to d
C to D would just be 62-42=20
what is the the displacement from a to d
they tell you that A and D overlap - so what do you think the displacement from A to D is?
i.e. how far would you have to travel from A in order to get to D?
how about the displacement
displacement = distance travelled
so would it be 0
thats it - looks like you've mastered this now :)
thank you. so when ever we want to find the position of the ant we have to think how far away from the orgin is it
you are more than welcome. and yes, position is always relative to the origin. displacement is just the distance travelled.
so they are the same ting. one more thing the displacent from c to d is negattive but the distance is positive . do you know why
C to D displacement is negative because you are travelling to the left. moving left to right along the x-axis is positive displacement. moving right to left along the x-axis is negative displacement.
how about distance
distance travelled is always positive.
distance and displacement are the same thing but in displacement we have to show positive or negative
distance and displacement have the same magnitude (i.e. size). distance is always positive and tells you how far you travelled. displacement has a sign that tells you in which direction you travelled.
I'm glad I was able to help. :)
:) . when we are asked postion is referring to distance or displacement
position is always relative to the origin. so you apply a displacement to where ever you are right now. that will take you either to the left or right of where you are now (depending on the sign of the displacement). where ever you end up, your position is how far you are from the origin.
can you help me with finding position c
we know B is positioned at x=59 (from above) and C is 42cm to the left of this, so C's position is x=59-42=17.
that what i got too. thanks
similarly, A and D's positions are x=-3
as they are to the left of the origin O
oh okay i see.