A group of students is investigating how a force applied to an object affects the motion of that object. The diagram shows the setup for the investigation. To create a force, the students add a weight to the weight holder and observe whether the cart moves. The students repeat this step five times, using a different amount of weight each time.
a. Describe two forces acting on the cart.
b. Make a claim about the forces on the cart when the cart does not move. __
Answer the question using 5 complete sentences, name the forces, and include the direction of the force in your description. Support your claim using Newton's Laws of Motion.
