Consider the motion of an object Constrained to move on the X-axis. Describe the physical Circumstances for the below sign Combinations of the acceleration, velocity, and position. For example, if the acceleration, velocity, and position vectors are al positive , the object is to the right of the origin , the object is moving away from the origin , and it is speeding up. D Sign of Sign of Sign of physical D Position Velocity acceleration Circumstances Zero + Zero a + - + b - + - C Zero