Question 1 (1 point) -
A 400-m, 800-m, and 1600-m race are all run around the same 400-m oval track.
The winning times for the races were 50 s, 2 min, and 4 min 10 s respectively. Which
of the following statements is true?
3
a) The 400-m runner has the greatest average velocity.
9
b) The 1600-m runner has the greatest average velocity.
12
c) All runners have the same average speed.
15
d) All runners have the same average velocity.
e) The 800-m runner has the greatest average velocity.
arch

What even is this. where is the question

  concave means having an outline or surface that curves inward like the interior of a circle or sphere. so the mirror curves inward.

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero.