can someone explain to me the relationships between force and velocity and position. i have a question that shows a force vs time graph, and the force is a straight horizontal line below zero. so it is a straight horizontal line in the 4th quad, and i have to draw the position graph. but i do not understand the relationships. i know that is force is 0, then velocity is consant and that if force is a constant, above zero , then velocity will be increasing. so does that mean that if force is negative that velocity is decreasing? and that the position is an upside down parabola?