2. 1D Motion / Kinematics
Velocity-Time Graphs & Acceleration
5PRACTICE PROBLEM
You are using high-speed motion pictures at 3200 frames/second to analyze a projectile launched from a toy gun at a nearly vertical angle. The projectile has 20 g and is 5 cm long. You generate the graph shown below using data from the motion pictures. From the graph, when is the acceleration of the projectile zero?
![](https://lightcat-files.s3.amazonaws.com/problem_images/983280cab6cdec4c-1670000412055.jpg)
You are using high-speed motion pictures at 3200 frames/second to analyze a projectile launched from a toy gun at a nearly vertical angle. The projectile has 20 g and is 5 cm long. You generate the graph shown below using data from the motion pictures. From the graph, when is the acceleration of the projectile zero?