A problem on velocity that is bugging me :/

[warhammer]

Homework Statement

A skier leaves a ski jump with a horizontal velocity of magnitude 29.4m/s. The instant before the skier lands 3.00s later, what are magnitudes of the horizontal & vertical components of her velocity?

Homework Equations

v=[(v^2(x component)+v^2 (y-component)]^(1/2)

The Attempt at a Solution

Honestly speaking I am at a loss about how to proceed! Please help![/sub][/sub]

 

[DoItForYourself]

Firstly, you must understand what forces are applied in x and y direction during the ski jump.

Then, you can use the second law of Newton for x and y direction.

 

[collinsmark]

Hello @warhammer,
Welcome to Physics Forums (PF)!

Homework Statement

A skier leaves a ski jump with a horizontal velocity of magnitude 29.4m/s. The instant before the skier lands 3.00s later, what are magnitudes of the horizontal & vertical components of her velocity?

Homework Equations

v=[(v^2(x component)+v^2 (y-component)]^(1/2)[/B]

The Attempt at a Solution

Honestly speaking I am at a loss about how to proceed! Please help![/sub][/sub]

Please post the problem verbatim as it was written. There seems to be some information missing. Is there a [vertical] height difference between the point where the skier leaves the jump and where she lands? What is her vertical velocity component when she leaves the jump?

Exactly where are you getting stuck? Please show us any work you have done so far.

 

[CWatters]

Unless there is more information in the problem statement I would make the following assumptions:

The launch is horizontal
There is no air resistance.

The problem then appears quite straightforward. Start by thinking about the vertical motion on it's own.