183_notes:displacement_and_velocity

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183_notes:displacement_and_velocity [2021/02/18 21:16] – [Constant Velocity Motion] stumptyl183_notes:displacement_and_velocity [2021/02/18 21:17] (current) – [Velocity and Speed] stumptyl
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 /* Add a little about distance versus displacement */ /* Add a little about distance versus displacement */
-==== Velocity and Speed ====+===== Velocity and Speed =====
  
 **Velocity** is a vector quantity that describes the rate of change of the displacement. **Velocity** is a vector quantity that describes the rate of change of the displacement.
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-=== Average Velocity ===+==== Average Velocity ====
  
 **Average Velocity** (→vavg) describes how an object changes its displacement in a given time. To compute an object's average velocity, you will need the position of the object at two different times. You can think of it as //average velocity = displacement divided by time elapsed//. Mathematically, we can represent the average velocity like this: **Average Velocity** (→vavg) describes how an object changes its displacement in a given time. To compute an object's average velocity, you will need the position of the object at two different times. You can think of it as //average velocity = displacement divided by time elapsed//. Mathematically, we can represent the average velocity like this:
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-=== Approximate Average Velocity ===+==== Approximate Average Velocity ====
  
 The average velocity is defined as the displacement over a given time, but what about the //arithmetic// average velocity? How do the arithmetic average velocity and average velocity compare? The average velocity is defined as the displacement over a given time, but what about the //arithmetic// average velocity? How do the arithmetic average velocity and average velocity compare?
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-=== Instantaneous Velocity ===+==== Instantaneous Velocity ====
  
 **Instantaneous velocity** (→v) describes how quickly an object is moving at a specific point in time. If you consider the displacement over shorter and shorter Δt's, your computation will give a reasonable approximation for the instantaneous velocity. In the limit that Δt goes to zero, your computation would be exact. Mathematically, we represent the instantaneous velocity like this: **Instantaneous velocity** (→v) describes how quickly an object is moving at a specific point in time. If you consider the displacement over shorter and shorter Δt's, your computation will give a reasonable approximation for the instantaneous velocity. In the limit that Δt goes to zero, your computation would be exact. Mathematically, we represent the instantaneous velocity like this:
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-=== Speed ===+==== Speed ====
  
 **Speed** is a scalar quantity that describes that distance (not the displacement) traveled over an elapsed time. **Speed** is a scalar quantity that describes that distance (not the displacement) traveled over an elapsed time.
  • 183_notes/displacement_and_velocity.1613682998.txt.gz
  • Last modified: 2021/02/18 21:16
  • by stumptyl