Predicted motion is that motion in which the motion of the body or object is been predicted that the motion will be like this.
<h3>How can an object's motion be described and predicted?</h3>
According to the Newton's second law of motion say's that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. We can use it for the prediction of the motion of an object. The net force is the vector quantity which is the sum of all the forces which are acting upon the object.
So we can conclude that: Predicted motion is that motion in which the motion of the body or object is been predicted that the motion will be like this.
The speed of light generally would be 300000km/s but since the train is moving in the same direction as the light it would apparently appear to be 100000km/s