Reconsider the collision between two objects diagrammed below where two objects move on a frictionless surface....
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Reconsider the collision between two objects diagrammed below where two objects move on a frictionless surface. Before collision After collision Experiment 1 A, 1 B A B Draw complete and properly labeled force diagrams for each object A1 and B, and for the system S at an instant during the collision. Suppose instead that object B were on such a rough section of track that it did not move during the collision, and object A moved to the left after the collision with a final speed equal to its initial speed. (Object A is still on a frictionless surface.) Draw complete and properly labeled force diagrams for each object A1 and B, and for the system S at an instant during the collision. Is it possible to tell from a force diagram whether the momentum of an object (or system) is not changing? Consider the following two examples: i. Could external forces be exerted on an object (or system) when its momentum is not changing? If so, cite a specific example(s) from the force diagrams you completed. If not, explain why not. ii. Could the net force on an object (or system) be non-zero when its momentum is not changing? If so, cite a specific example(s) from the force diagrams you completed. If not, explain why not. Reconsider the collision between two objects diagrammed below where two objects move on a frictionless surface. Before collision After collision Experiment 1 A, 1 B A B Draw complete and properly labeled force diagrams for each object A1 and B, and for the system S at an instant during the collision. Suppose instead that object B were on such a rough section of track that it did not move during the collision, and object A moved to the left after the collision with a final speed equal to its initial speed. (Object A is still on a frictionless surface.) Draw complete and properly labeled force diagrams for each object A1 and B, and for the system S at an instant during the collision. Is it possible to tell from a force diagram whether the momentum of an object (or system) is not changing? Consider the following two examples: i. Could external forces be exerted on an object (or system) when its momentum is not changing? If so, cite a specific example(s) from the force diagrams you completed. If not, explain why not. ii. Could the net force on an object (or system) be non-zero when its momentum is not changing? If so, cite a specific example(s) from the force diagrams you completed. If not, explain why not.
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