Calculate the avg speed phyics help

[deaninator]

"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

 

[AC130Nav]

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.

 

[deaninator]

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.

 

[AC130Nav]

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.

 

[deaninator]

Thanks, you were right all along!