Which of the following quantities are unknown?

select all that apply.

select all that apply.

the initial speed of the alpha particle
the charge of the alpha particle
the value of the electric potential at the initial position of the alpha particle
the value of the electric potential at the final position of the alpha particle
the final speed of the alpha particle
the difference in potential between the initial and final positions of the alpha particle
the mass of the alpha particle

  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.