Question 1: Car Zoom In this activity, you will examine the horizontal displacement and velocity of a car using Tracker, a free scientific tool available through the Open Source Physics Project.

To begin your investigation, open the Tracker Car Zoom experiment. Click play () to watch the movie. The other video controls allow you to rewind () the video or step forward () or backward () one frame at a time.

Part A

Based on what you saw, how would you describe the car’s velocity? Discuss both its speed and its direction. Mention any change to speed or direction you observe.

ANSWER:The car appears to be traveling at a constant speed from left to right. Since it doesn’t change either speed or direction, velocity is constant.