Average Speed Between Points A & B: 0 m/s

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Homework Help Overview

The discussion revolves around calculating the average speed of a person walking between two points, A and B, at different speeds for each leg of the journey. The original poster expresses confusion about how to determine the average speed, particularly regarding the calculation of time taken for each segment of the trip.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the need to calculate the time taken for each leg of the journey and suggest expressing time in terms of distance. There are questions about how to find the time and the relevance of average speed calculations.

Discussion Status

Some participants have offered guidance on calculating the time for each segment of the trip, while others are still questioning the approach and expressing confusion about the process. Multiple interpretations of how to proceed are being explored.

Contextual Notes

The original poster mentions having found an average velocity of 0 m/s, which raises questions about the assumptions made regarding distance and time in the context of the problem.

frizzler43
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A person walks first at a constant speed of 5.01 m/x along a straight line from point A to B and then back along the line from B to A at a constant speed of 3.10 m/s

What is the average speed over the entire trip?

I've tried everything from adding the two and dividing by two. I've found that the avg. velocity over the trip is 0 m/s.
I know that avg speed=distance over time. I just don't know how you are suppose to find the time o if that's even what you're suppose to do
 
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welcome to pf!

hi frizzler43! welcome to pf! :wink:
frizzler43 said:
… I know that avg speed=distance over time. I just don't know how you are suppose to find the time o if that's even what you're suppose to do

first, calculate the time for each half …

show us what you get :smile:​
 
frizzler43 said:
I just don't know how you are suppose to find the time o if that's even what you're suppose to do
Find the time to go from A to B, then the time to go from B to A. Add to get the total. Hint: Express the time in terms of the distance, which you can just call D.
 
how are you suppose to find the time?
 
frizzler43 said:
how are you suppose to find the time?

uhh? :confused:

speed = distance/time …

get on with it! :rolleyes:​
 

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