Question

A jetliner is traveling east from Salt Lake City to Washington DC, a distance of 1,850 miles. The jetliner travels at an average air speed of 590 mph relative to the air. At the jetliner's altitude, the wind is blowing 36 mph to the west. How long does the journey take? @abhisar

Answer 1

What will be the velocity of jetliner relative to ground ?

Answer 2

626

Answer 3

Do you know the answer ?

Answer 4

Is it 1850/626

Answer 5

2.96 hr

Answer 6

This is the given answer ?

Answer 7

That's way I got no given answer

Answer 8

I think,
590 is the relative velocity wrt air. So 590 = x+36

--> 590-36=554=x=velocity of jetliner wrt to ground.

Answer 9

Now time=1850/554=3.33 hr

Answer 10

Thanks

Answer 11

Is it the correct answer ?
How will we know ?

Answer 12

We don't know

Answer 13

When will we know ?

Answer 14

If 590 is relative does that mean with air factored in

Answer 15

i am not sure about this one. I will be to explain it properly only if i come to know the answer.

Answer 16

@Abmon98 can u check it ?

Answer 17

K I'll let u know when we go over it in claas

Answer 18

Average Speed=Total Distance/Total time
590*T=1850
T=1850/590

Answer 19

Sure ?

Answer 20

Thanks

Answer 21

i am not sure because of the wind part.

Answer 22

Yea its worded poorly with relative to the wind

Answer 23

yeah...i m in a same state.. Sincew the given velocity is relative to air. To calculate the the time we need velocity wrt to ground.

Answer 24

I think its 554

Answer 25

me too !

Answer 26

but then the next moment i am confused with 626 as u calculated. But more inclined towards 554

Answer 27

I think its 554 bc the air sees it as 590 bc it goes 36 in the opposite dorection

Answer 28

Direction

Answer 29

yeah that's why @akohl

Answer 30

Gtg thanks for ur help ill let u know what my teacher says tommorrow

Answer 31

is the speed 626 i got 626 as my answer?

Answer 32

it's not clear. He will tell us tmrw i think. I am also confused.

Answer 33

Let's see...btw thanx @Abmon98 !

Answer 34

your welcome :)

Answer 35

Excuse my drawing XD

Answer 36

whoa !!
That's fab..

Answer 37

excuse me for my no drawing XD

Answer 38

lol, you have got a good point wind is travelling against the air planes direction but the problem here is that that the destination is towards the east so when i drew a displacement vector i couldn't find a way to join them together other that.

Answer 39

:D