I need the answer to that and how to do it.

prolly a beacuse the momentuem the car has increases while going down hill

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.

i think it would be 5