41 car a, moving in a straight line at a constant speed of 20. meters per second, is initially 200 meters behind car b, moving in the same straight line at a constant speed of 15 meters per second. how far must car a travel from this initial position before it catches up with car b?

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative