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you need to find the distance so you have to integrate

the choices are:
a) 112.56 m
b) 135.68 m
c) 117.33 m
d) 125.75 m

i already derive this v(t)=4t^2+3t+2 and plug in t=4

u have o integrate it

nd hten plug in t=4

can you integrate the expression

ok wait

whats the limit? 0 and 4?

write v in terms of dx/dt and then integrate

yes

|dw:1433684988494:dw|

oooh got it

the answer is 117.33

right!

i thought it must be derive

thats why i cant get the answer.

derivation will give you acceleration ( rate of change of velocity)

so questions like this must be intergrated?

if you are given velocity you integrate to get distance yes

- between the required limits

ok thanks a lot :-)