Calculate the avg speed phyics help

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Homework Help Overview

The problem involves calculating the average speed of a caiman swimming different distances at varying speeds. The scenario includes two segments of travel: one at 6 m/s for 190 meters and another at 4 m/s for 340 meters.

Discussion Character

  • Exploratory, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss calculating total distance and total time to find average speed, using the formula v = D/t. There is an attempt to verify calculations of time for each segment and the overall average speed.

Discussion Status

Participants are actively engaging in verifying calculations and discussing the correctness of their results. There is acknowledgment of correct numbers, but a discrepancy in the final average speed calculation remains a point of discussion.

Contextual Notes

There appears to be confusion regarding the final average speed calculation, despite correct intermediate values being noted. The original poster's calculations are under scrutiny, and assumptions about the method used may be questioned.

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"Calculate the avg speed" phyics help

Homework Statement



A caiman swims 190 meters at a speed of 6 m/s. It then enters a stream and slows to 4 m/s for 340 meters. What is the average speed of the crocodile?
10 minutes ago - 4 days left to answer.


Homework Equations





The Attempt at a Solution

 
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deaninator said:

Homework Statement



A caiman swims 190 meters at a speed of 6 m/s. It then enters a stream and slows to 4 m/s for 340 meters. What is the average speed of the crocodile?
10 minutes ago - 4 days left to answer.


Homework Equations





The Attempt at a Solution


You have two distance and speed sets from which you can get times. Add the times and add the distances, now you have a new r = D/t.
 


AC130Nav said:
You have two distance and speed sets from which you can get times. Add the times and add the distances, now you have a new r = D/t.

I did that. I added 190m and 340m and I got 530m as the total distance. I did the v=d/t formula on both distances and i got the times as 85 s and 31.66 s. I then divided 530m.116.66 s and i got 4.54 m/s but that is incorrect.
 


deaninator said:
I did that. I added 190m and 340m and I got 530m as the total distance. I did the v=d/t formula on both distances and i got the times as 85 s and 31.66 s. I then divided 530m.116.66 s and i got 4.54 m/s but that is incorrect.

Your numbers appear correct.
 


Thanks, you were right all along!
 

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