In this task, you will photograph three objects, each in a different state of motion.

1. One of your photos must be of an object in uniform motion, or at rest (no acceleration).
2. One of your photos must be of an object positively accelerating.
3. One of your photos must be of an object negatively accelerating.

Using a photo markup tool(such as Skitch, Snapchat, Google Drawings, etc.), identify the forces acting upon those objects.

In words, you will need to clearly identify the object. You will also need to describe, in words, what each object is doing (sometimes it is hard to tell if something is moving from a still picture). Finally, in words, indicate in which direction the net force is pointed, or if the net force is zero.

Keep the following in mind while marking up your photos:

• All force arrows point out of the object, in the direction the force is exerted on the object.
• The relative size of the arrows matter -- the longer the arrow, the larger the force.
• Keep your forces neat(straight lines, please) and do not forget to label each force. See the free-body diagrams earlier in this activity for examples.