1. Relating Acceleration and Velocity in Two-Dimensional Motion An object moves clockwise with decreasing speed around an oval track. The velocity vectors at points G and H are shown below. Top View A. Determine the changein-velocity vector A27 for the object as it moves from point G to point H. Show your work to earn full credit. B. Describe how you would nd the average acceleration away for the object as it moves from point G to point H. In what direction does it point (draw it in comparison to 5G and 53? C. If point H were chosen to lie closer to point G, describe how A would change. Support your conclusion with a sketch. D. Describe how you would nd the (instantaneous) acceleration El for the object at point G. In what direction does it point (draw it in comparison to g )? Is the angle between the acceleration and the velocity greater than, less than, or equal to 90? E. Based on this example and the examples we considered in the tutorial exercises answer the following question: For an object moving along a curved trajectory, how does the angle between the acceleration and the velocity compare to 90 if the object moves with i. constant speed ii. increasing speed, and iii. decreasing speed? 2. An object moves clockwise along the trajectory below (top view shown). The acceleration varies, but is always directed toward point K. Top View G A. For each point AG in the diagram draw Ei an acceleration vector showing its direction. B. For each of the points A-G, state whether the object is speeding up, slowing down, or neither. C. For each point A-G in the diagram draw a velocity vector. The relative magnitudes of these vectors should be qualitatively correct