Experiments have shown that, for airflow at = 35°c and = 100 m/s, the rate of heat transfer ∞1 from a turbine blade of characteristic length l1 = 0.15 m and surface temperature = 300°c is =1500 w. what would be the heat transfer rate from a second turbine blade of characteristic length l2 = 0.3 m operating at = 400°c in airflow of = 35°c and v2 = 50 m/s? the surface area of the ∞ blade may be assumed to be directly proportional to its characteristic length.

Answer form flower;

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. 

Ibelieve the answer is d. macula  hope my answer has you : )