Question

As time distance scalers cannot be negative but y in meh book it is written tat t=-3 d=-140????

Answer 1

I dunno, probably mean that if something is happening in past three (min), something would be 140 units behind?

Answer 2

think of it as past

Answer 3

but distance can not be in negative soo y it is givven?

Answer 4

well, technically, yes and no. at starting point, you call it 0, so let say there is a car at 0. if you go backward instead of forward, you would go in negative distance.

Answer 5

that's probably why negative distance is given in book

Answer 6

sooo it is given for imagining?

Answer 7

yeah, I guess. depending on exactly what book is talking about...

Answer 8

hehe thanks geerky42

Answer 9

no problem