Question

Question on displacement & velocity.

Will post the question and my idea on how to do it.

Answer 1

on the first one "[3,4]" I tried the answer 4. from:

s = t2 − 6t + 18
s' = 2t - 6
s' = 2(3) - 6
m = 0

y - 4 = (0)(x-x1)
y = 4

but it didnt work.

do i just substitute the values 3 and 4 on the original equation then add them then divide by 2 to get the average?

Answer 2

wiat scratch that.

so...
do i use s' = 2t - 6 and substitute the values like:
s' = 2(3) - 6
s' = 0 m/s

and
s' = 2(4) - 6
s' = 8-6
s' = 2

and average the two?

Answer 3

\[\frac{ s(4) -s(3) }{ 4-3}\]

Answer 4

really? that's it?

Answer 5

yep:)

Answer 6

k ill try it

Answer 7

your second method works too... but I get the feeling they want you to do this the way I did it...

Answer 8

ok

Answer 9

haha! thanks! :D

Answer 10

sure:)