Help velocity distance question

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Homework Help Overview

The problem involves calculating the distance traveled and average speed for a car journey between two cities, where the journey consists of segments traveled at different constant speeds over specified time intervals. The context includes considerations of time spent on breaks.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the initial steps needed to solve the problem, with some questioning the assumptions about the direction of travel and whether the problem involves weighted averages. Others seek clarification on where the original poster is experiencing difficulty.

Discussion Status

The discussion is ongoing, with participants offering hints and prompting the original poster to share their work. There is an exploration of different interpretations of the problem, particularly regarding the assumptions about velocity and the approach to calculating distance.

Contextual Notes

There are no specific directions given for the velocity, leading to questions about the assumptions being made in the problem setup. The original poster expresses uncertainty about the nature of the problem, particularly regarding whether it involves weighted averages.

snowbelle
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a person travels by car from one city to another with different constant speeds between pair of cities, she drives for 34.2 minutes at 82.7 km/h, 11.1 min at 97.7 km/h, and 48.4 min at 39.9 km/h and spends 17.2 min eating lunch and buying gas. find the distance between initial and final cities along this route. find average speed for this trip
 
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So what's the problem, and by that I mean, where are you stuck? On the first part of the problem, or the second? Please show us your work so far, so we can help you out.

Hint: the first part of the problem is really straightforward. We know how fast she traveled and how long she traveled for at that speed, so we can easily calculate how far she went during that part of the trip.
 
Were there any directions given for the velocity? Or are you assuming that this all happens in a straight line?
 
there is no directions given for the velocity and I am stuck at the first question. is this an weighted average problem?
 
For the first question just use:

v = d / t
 

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