This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A girl operates a radio-controlled model car in a vacant parking lot. The girl's position is at the origin of the xy coordinate axes, and the surface of the parking lot lies in the x-y plane. The motion of the car is defined by the position vector r = (2+2t)i + (6 +t)j, where rand t are expressed in meters and seconds, respectively. y (m) ol x (m)