9. Think & Calculate A train on a straight track goes in the positive direction for 5.9 km, and then backs up for 3.8 km. (a) Is the distance covered by the train greater than, less than or equal to its displacement? Explain. (b) What is the distance covered by the train? (c) What is the train's displacement?

Ithink it’s 98 because jajajjajansmsmjs

Answer(b) 60 miles per hour;

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.