Which of the following statements is true? (It may be one, more than one, or none of the following.) Select one or more:

a. The radius of gyration for a rectangle about its baseline is h/sqrt(3).
b. The radius of gyration of an area is the square root of I/A.
c. The radius of gyration of an area represents the place to put the force to change a distributed load into a point load.
d. The radius of gyration of an area is the same for both x and y.

45 is the correct answer

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.