Velocity over time / 2 questions

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Homework Help Overview

The discussion revolves around a physics problem involving average velocity and its relationship with distance and time. The original poster presents two questions related to calculating distance traveled based on average speed and time.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants explore the meaning of velocity and its mathematical representation, questioning the relationship between distance, time, and speed. There is an attempt to clarify the distinction between speed and velocity.

Discussion Status

Some participants have provided insights into the equations relating speed, distance, and time, while others express confusion regarding the concepts involved. Guidance has been offered to help clarify the mathematical relationships, but there remains a lack of consensus on the distinction between speed and velocity.

Contextual Notes

The original poster indicates a desire for equations rather than direct answers, suggesting a focus on understanding the underlying principles rather than simply solving the problem. There is also a mention of reading materials to clarify concepts.

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Homework Statement


1. Lillian rides her bicycle along a straight road at an average velocity (v).
(1)Write an equation showing how far she travels in time (t).
(2) If Lillian’s average speed is 7.5m/s for a time of 5.0min, show that she travels a distance of 2300m.

Homework Equations


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The Attempt at a Solution


I've read quite a bit in the notes that I've taken and can't find the relevant equation needed to solve both questions. I'm not looking for the "answer" so much. But the equations needed to solve would be amazing. I'll do the work myself.
 
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What does 1 m/s mean, mathematically?
 
negitron said:
What does 1 m/s mean, mathematically?

1.0 meters per second?
 
Does that not suggest an equation which relates distance, time and speed?
 
negitron said:
Does that not suggest an equation which relates distance, time and speed?

speed = meters/time .. so just speed = distance/time.
 
Correct. Now, you can solve problem #1, at the very least.
 
I suppose I'm confused about the difference between speed/velocity. Time to read. Thanks a lot for the help!
 
In this case, speed and velocity are interchangeable. More formally, velocity is a vector quantity which includes speed AND direction but for the purposes of this exercise, you needn't worry about that distinction.
 

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