Homework Help: Motion Problem

1. Sep 11, 2008

Garen

Motion Problem!!

1. The problem statement, all variables and given/known data

3. The attempt at a solution

Okay, so I got number one (6.36904) but I'm having real trouble getting the angle w.r.t the wall. At first I thought of taking the t (from )[/URL] then multiplying it by the acceleration to get the y component of the velocity. I then thought of taking the inverse tangent of (5.5/Vy). But I am not sure if it is right. Did I do something wrong?

Last edited by a moderator: Apr 23, 2017
2. Sep 12, 2008

Clairefucious

Re: Motion Problem!!

Yes, you do want something like tan(angle) = vx / vy. This gives you the angle between your vector and the vertical direction (the wall is vertical).

3. Sep 12, 2008

Garen

Re: Motion Problem!!

Can please be a little more specific?

4. Sep 12, 2008

Kurdt

Staff Emeritus
Re: Motion Problem!!

You need the x and y components of the velocity and then you can use your tangent method.

5. Sep 12, 2008

Garen

Re: Motion Problem!!

That's what I was trying to do, but is my method of getting the y component of the velocity (listed above) right? Or was I supposed to use another method?

6. Sep 12, 2008

Kurdt

Staff Emeritus
Re: Motion Problem!!

You'll have to use some kinematic equations. You need to find the time it takes to hit the wall and then the speed it will be travelling in the vertical direction due to that acceleration after that time. If you got the first part correct then you should already know both components surely?