15. A car is driving north at a steady speed. It makes a gradual 90° left turn without losing speed, then continues driving to the
west. Draw a motion diagram, using the particle model, show-
ing the car's velocity vectors as seen from a helicopter hovering
over the highway.

  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.

not too sure thinking all accelerations are pointed down

answer(20) psi;