Aswimmer bounces straight up from a diving board and falls feet first into a pool. she starts with a velocity of 4.00 m/s, and her takeoff point is 1.80 m above the pool. (a) how long are her feet in the air? (b) what is her highest point above the board? (c) what is her velocity when her feet hit the water?

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. 

From my calculation, i got 3.655moles