A person is running on a track. Which of the following forces propels the runner forward?

The way that runners propel themselves is because of Newton's Third Law. The normal force by the feet on the ground create an equal and opposite force to propel the runner forward.

Explanation:

  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.