In winter, after a snowfall, many people have trouble getting the car out of the driveway if the garage is below the level of the road. if the coefficient of static friction between tires of normal wear and snow is 0.14, what is the maximum incline of a driveway so that a four- wheel-drive vehicle can get up on the road during the winter?

Iwould say a is accurate

What are you trying to ask?

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.