Question

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Answer 1

how far did joe go during the first 45 minutes?

Answer 2

The question "how far" is not the same as "how fast"

Answer 3

If you go 60 miles per hour for 1 hour, how far would you go?

Answer 4

If you 60 miles per hour for 30 minutes, how far would you go?

Answer 5

If you go 70 km per hour for 1 hour, how far would you go?

Answer 6

If you go 70 km per hour for 45 minutes, how far would you go?

Answer 7

Very good.

Answer 8

If you go 95 km per hour for 10 minutes, how far would you go?

Answer 9

Good

Answer 10

If you go 55 km per hour for 30 minutes, how far would you go?

Answer 11

So now Joe has gone 52.5 km +15.8 km + 27.5 km.
How far has he gone in all

Answer 12

And he did all that in 45 + 10 + 30 + 20 minutes which is how many hours?

Answer 13

Or 1.75 hours

Answer 14

So he went 95.8 km in 1.75 hours
How many kilometers per hour is that?

Answer 15

And that is his average speed.

Answer 16

yw. Do you understand?

Answer 17

I can try.

Answer 18

This is the same idea as the last one.

Answer 19

Find the total distance and divide by the total time to get the average velocity just like the last one.

Answer 20

That's what is puzzling about the answer choices. The question asks about the round trip average speed and all the answers except 1 deal with half of the trip and the one answer that doesn't is 0.

Answer 21

Did you type the last answer choice incorrectly?

Answer 22

Did you type the last answer choice incorrectly?

Answer 23

So one of the answer choices is that the average speed is 0 ???

Answer 24

Well then, none of it makes any sense to me because it wants to know the average velocity for the round trip.

Answer 25

The round trip is 60 meters and it took 34 seconds. So the average velocity is 60/34 which is 1.76 m per sec and that is not one of the choices.

Answer 26

And so I wish you would double and triple check EVERYTHING to make sure it is posted EXACTLY as written.

Answer 27

It would be 1.79 m per second if you did it that way

Answer 28

From south to north would be 2 m per second
From north to south would be 1.58 m per second

Answer 29

For the second half, he went 30 m in 19 seconds so it is 1.58 m/s

Answer 30

Is sit a computer quiz?

Answer 31

Will you know if it is right as soon as you submit it?

Answer 32

Were there 10 questions?

Answer 33

And you can't review the quiz?

Answer 34

I agree. Sure would like to know what they meant by that question.

Answer 35

Look at this:
http://answers.yahoo.com/question/index?qid=20110507181301AAvQYBW

Answer 36

Look at this:
http://openstudy.com/study#/updates/50e61a22e4b04bcb15167bce