It takes a person 42 seconds to swim in a straight line from the west end of a pool to the east end of the pool, a distance of 45 meters. What is the

swimmer's velocity?

A. 0.9 m/s east

B. 0.9 m/s west

C. 1.1 m/s east

D. 1.1 m/s west

Apossible long term health effects of stress would be work

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.