• Congratulations to the Class of 2024 on your results!
    Let us know how you went here
    Got a question about your uni preferences? Ask us here

How to solve this vector question? (1 Viewer)

fabl

Member
Joined
Aug 7, 2014
Messages
56
Gender
Male
HSC
2014
another aeroplane can travel at a speed of 240km/h when there's no wind. Today there's a wind velocity of -3i -7j km/h. The speed of the wind is 7.62 km/h.

Find the position vector required if the aeroplane is to end up due East of its starting position.

What would this look like in a diagram?
 

fabl

Member
Joined
Aug 7, 2014
Messages
56
Gender
Male
HSC
2014
How to solve this vector problem?

another aeroplane can travel at a speed of 240km/h when there's no wind. Today there's a wind velocity of -3i -7j km/h. The speed of the wind is 7.62 km/h.

Find the position vector required if the aeroplane is to end up due East of its starting position.

What would this look like in a diagram?
 

FrankXie

Active Member
Joined
Oct 17, 2014
Messages
330
Location
Parramatta, NSW
Gender
Male
HSC
N/A
Uni Grad
2004
Re: How to solve this vector problem?

do u know how to resolve a vector along othogonal directions? u resolve the velocity of the plane along positive x and positive y directions, find the component in positive y direction, this component needs to be equal to that of the wind, from which you can find the position vector of the plane
 

braintic

Well-Known Member
Joined
Jan 20, 2011
Messages
2,137
Gender
Undisclosed
HSC
N/A
another aeroplane can travel at a speed of 240km/h when there's no wind. Today there's a wind velocity of -3i -7j km/h. The speed of the wind is 7.62 km/h.

Find the position vector required if the aeroplane is to end up due East of its starting position.

What would this look like in a diagram?
Don't you mean 'find the initial VELOCITY vector' ?
 

fabl

Member
Joined
Aug 7, 2014
Messages
56
Gender
Male
HSC
2014
Plane travels at a speed of 240km/h when there's no wind. Today there's wind velocity

Plane travels at a speed of 240km/h when there's no wind. Today there's wind velocity of -3i -7j km/h. Speed of the wind is 7.62 km/h.

What is the working out of the position vector required if the pane is to end up due east of its starting position after 2 hours?

The Answer is : 486i + 14j ????
 

braintic

Well-Known Member
Joined
Jan 20, 2011
Messages
2,137
Gender
Undisclosed
HSC
N/A
Re: Plane travels at a speed of 240km/h when there's no wind. Today there's wind velo

Plane travels at a speed of 240km/h when there's no wind. Today there's wind velocity of -3i -7j km/h. Speed of the wind is 7.62 km/h.

What is the working out of the position vector required if the pane is to end up due east of its starting position after 2 hours?

The Answer is : 486i + 14j ????
You asked this before, and it was moved because it doesn't belong in this thread.

Same answer as before: You mean the initial VELOCITY vector, not position vector.

Edit: Looks like they've merged the threads now.
 
Last edited:

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top