There is a graph of position (m) over time (s). It starts at (0,0), goes up to (2,4) then down to (3,-2).
What is the displacement at 3
s?
Answer in units of m Your answer must be
within ± 5.0%

Question

There is a graph of position (m) over time (s). It starts at (0,0), goes up to (2,4) then down to (3,-2).
What is the displacement at 3
s?
Answer in units of m Your answer must be
within ± 5.0%

tkhunny · Answer

"displacement at 3" -- What does that mean?

1: (0,0)
2: (2,4)
3: (3,-2)

Is that what "3" means?

You could just ignore 2 and use the distance formula do calculate the final displacement.

jdoe0001 · Answer

|dw:1379188316585:dw|

jdoe0001 · Answer

$\large \text{distance between 2 points}\
d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}$

anonymous · Answer

yes, the displacement at 3 seconds. but i don't know what it means to answer it within ± 5.0% ?

jdoe0001 · Answer

hmmm... yeah.... that's kinda obscure

tkhunny · Answer

So, what's the big deal?  Answer it exactly.