Aball of mass m = 241 g is heading towards a wall at 20.0 m/s. after the collision with the wall, it travels in the opposite direction with a speed of 16.0 m/s. the impact with the wall lasted 60.0 ms . what is the magnitude of the average force exerted by the wall on the ball during this time?

She sold 135 peaches, because if you multiply 2.50 eith 135, you'd get 337.5, the 0 can be added or not.

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.