If you know the acceleration of a car, its initial velocity, and the time interval, which of the following can you predict?
a.
the direction of the car’s final velocity
b.
the magnitude of the car’s final velocity
c.
the displacement of the car
d.
all of the above

Question

If you know the acceleration of a car, its initial velocity, and the time interval, which of the following can you predict?
a.
the direction of the car’s final velocity
b.
the magnitude of the car’s final velocity
c.
the displacement of the car
d.
all of the above

anonymous · Answer

What do you think it is? Based on those three things.

anonymous · Answer

I thought it was C. But apparently i was wrong. I am making up my last credit to graduate. These questions are on pre-tests and you do not get an overview or lesson before-hand. So I honestly have no clue what it could be.

anonymous · Answer

By the way I do my school work online.

anonymous · Answer

Well, lets start from the beginning,

Acceleration is described as the amount of speed that is increased over a certain amount of time, OR the amount of speed that is decelerated over an amount of time. I could write this as 40 meters/ seconds^2

Initial velocity tells you how fast you are going at the beginning, for example I move at 4 meters per second, I could write that as 4 meters/second

and the amount of time given can tell me how much I speed up from my INITIAL velocity(how fast I was going at the beginning) due the amount of time I ACCELERATED. 

And of course you have to accelerate or speed up in a direction right? or you wouldn't be exactly be speeding up if you're going in NO direction.