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The following physics responses are provided by a student and, as such, should be considered in that context. While every effort is made for accuracy, absolute correctness cannot be fully guaranteed.
| Question | |
C | 2 |
I | |
Question In one-dimensional motion where the direction is indicated by a plus or minus sign, the average velocity of an object has which of the following properties? | |
Answer It can be positive, negative, or zero. | |
Notes
| User | Added | Note | e | d |
|---|---|---|---|---|
| KillGorack | 2023-06-18 09:09:59 | Positive average velocity: This occurs when the displacement is in the direction we've defined as positive. In a one-dimensional motion, if an object moves from a lower position to a higher position (like moving from 2m to 5m on a number line), its displacement and average velocity would be positive. Negative average velocity: This occurs when the displacement is in the direction we've defined as negative. In one-dimensional motion, if an object moves from a higher position to a lower position (like moving from 5m to 2m on a number line), its displacement and average velocity would be negative. Zero average velocity: This occurs when the final position is the same as the initial position. Since displacement is zero in this case (final position - initial position = 0), the average velocity will also be zero. This is true even if the object moved during the time interval; as long as it returned to the starting position, the average velocity would be zero. |
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