Which of the following statements best compares electromagnets to permanent magnets in a maglev train?
А
Permanent magnets change their polarity between north and south
electromagnets do not.
B
Electromagnets change their polarity between north and south, permanent
magnets do not
С
Both electromagnets and permanent magnets change their polarity.
D
Neither electromagnets nor permanent magnets change their polarity.

what was the answer?

  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.