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MIT
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8.01
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Lesson
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3:
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Motion
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with
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Constant
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Velocity
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and
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Zero
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Net
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Force
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Lesson
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Summary
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We |
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introduce |
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a |
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simple |
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based |
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on |
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Newton's |
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revolutionary |
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insight |
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- |
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that |
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the |
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natural |
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state |
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of |
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motion |
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of |
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an |
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isolated |
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body |
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is |
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motion |
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with |
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constant |
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velocity. |
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now
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explore
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our
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first
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-
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motion
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with
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constant
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velocity.
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According
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to
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Newton,
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this
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is
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the
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natural
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state
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of motion that occurs when the net external force acting on a body is zero. This constant velocity will be measured with respect to any inertial coordinate system (but not an accelerating one).
Learning Objectives
After completing this Lesson, students should be able to:
- Describe the difference between distance and displacement.
- Define average velocity and average speed.
- Describe the features of a motion diagram that exhibits motion with constant velocity.
- Relate displacement, time and velocity.
- Find velocity from the slope of a position versus time graph.
- Describe the properties of the position versus time graph given the velocity and the initial position for a trip made at constant velocity.
- Mathematically determine when two objects moving with constant velocity will meet by constructing and solving a system of equations.
- Graphically determine when two objects moving with constant velocity will meet.
- understand and use the One-Dimensional Motion with Constant Velocity model template from the hierarchy of Models.
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Now that you have completed the Lesson, look at the model template for 1-D Motion with Constant Velocity, which is intended to be a succinct summary of what you have learned. motion. If the net [external|external force] [force] acting on a body is zero, the body will move with constant [velocity] (with respect to an inertial coordinate system). h4. Learning Objectives After completing this Lesson, students should be able to: * Describe the difference between [distance] and [displacement]. * Define average [velocity] and average [speed]. * Describe the features of a [motion diagram] that exhibits motion with constant [velocity]. * Relate [displacement], time and [velocity]. * Find [velocity] from the slope of a [position versus time graph]. * Describe the properties of the [position versus time graph] given the [velocity] and the initial [position] for a trip made at constant velocity. * Mathematically determine when two objects moving with constant velocity will meet by constructing and solving a system of equations. * Graphically determine when two objects moving with constant velocity will meet. * understand and use the [One-Dimensional Motion with Constant Velocity|1-D Motion (Constant Velocity)] model template from the [Model Hierarchy]. {include:Motion with Constant Velocity (Systems)} {include:Motion with Constant Velocity (Interactions)} {include:Motion with Constant Velocity (Laws of Change)} {include:Motion with Constant Velocity (Coordinates)} {include:Motion with Constant Velocity (Graphs)} {include:Motion with Constant Velocity (Multi-Stage)} {include:Motion with Constant Velocity (Multi-System)} {note}Now that you have completed the Lesson, look at the [model template for 1-D Motion with Constant Velocity|1-D Motion (Constant Velocity)], which is intended to be a succinct summary of what you have learned.{note} {td} {tr} {table} |