1. Homework 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. Copy the vectors DG and OH (placed "tail-to-tail") in the space at right, and show how to find the change-in-velocity vector, Av. b. If point H were chosen to lie closer to point G, describe how A would change. C. Describe how you would determine the acceleration at point G (both magnitude and direction). In the space at right, indicate the direction of the acceleration of the object at point G. d. Copy VG and ac (placed "tail-to-tail") in the space at right. Is the angle between the acceleration and the velocity greater than, less than, or equal to 90°? G H e. Generalize your results above and from tutorial to answer . GH ,, and Av Direction of a G V and a G the following question about an object moving along a curved trajectory. How does the angle between the acceleration and the velocity (when placed tail to tail) compare to 90° if the object moves with: • constant speed. increasing speed. decreasing speed.

1. Homework 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. Copy the vectors DG and OH (placed "tail-to-tail") in the space at right, and show how to find the change-in-velocity vector, Av. b. If point H were chosen to lie closer to point G, describe how A would change. C. Describe how you would determine the acceleration at point G (both magnitude and direction). In the space at right, indicate the direction of the acceleration of the object at point G. d. Copy VG and ac (placed "tail-to-tail") in the space at right. Is the angle between the acceleration and the velocity greater than, less than, or equal to 90°? G H e. Generalize your results above and from tutorial to answer . GH ,, and Av Direction of a G V and a G the following question about an object moving along a curved trajectory. How does the angle between the acceleration and the velocity (when placed tail to tail) compare to 90° if the object moves with: • constant speed. increasing speed. decreasing speed.