Question

did I do the calculations right for velocity and acceleration. *see attachment below*

Answer 1

for velocity i used v= df- di/tf-ti
and for acceleraiton I used a=vf-vi/tf-ti

Answer 2

what are you trying to find exactly?
I guess you aren't trying to find the velocity at a certain time... (that would be too easy)

Answer 3

average velocity over the interval [0,1] would be
\[\frac{s(1)-s(0)}{1-0}\]

Answer 4

where s is the distance function

Answer 5

I was trying to find velocity and the equation for velocity is v= distance final - distance intial / time final - time intial. so for example I did, 0.8 - 0.2/0.4 - 0.2.

Answer 6

I used 0.2 for my intial each time is tha correct?

Answer 7

well the initial time in the chart is 0

Answer 8

0 sec (That is )

Answer 9

my teacher did one example for me and used 0.2 but for the frst one i used 0. so I just assumed to use 0.2 for the rest

Answer 10

maybe in the problem he has his initial time was 0.2 ?

Answer 11

he was using my chart so do you think I should redo it using 0 as my intial?

Answer 12

well 0 is the intial

Answer 13

ok thanks

Answer 14

if you are finding average velocity
then
\[\frac{d_f-d_i}{t_f-t_i}\]
is correct

Answer 15

average velocity over \[ [t_i,t_f] \]
that is
you know where t_i is 0
and t_f is 1