Atrain moves forward at a constant speed. what is true about the forces
acting on the train? sc. c.2.3.6
a. the forward forces are equal to the forces acting in the backward
direction.
b. the forward forces are greater than the forces acting in the backward
direction.
c. the forward forces are smaller than the forces acting in the backward
direction.
d. there can never be any force acting on the train when it moves at a
constant speed.