Calculate initial velocity to move a set distance with inertia

Posted by Bodyscanner on Stack Overflow See other posts from Stack Overflow or by Bodyscanner
Published on 2010-03-21T12:36:03Z Indexed on 2010/03/21 12:41 UTC
Read the original article Hit count: 519

Filed under:

velocity

|

motion

|

drag

|

inertia

Hello,

I want to move something a set distance. However in my system there is inertia/drag/negative accelaration. I'm using a formula like this for it:

velocity = oldVelocity + ((velocity - oldVelocity * inertia)

where inertia is a fractional value like 0.25

So to move the item a set distance, I need to calculate what the initial velocity should be (I know what all the other values are). I've been looking at Equations of motion (http://en.wikipedia.org/wiki/Equations_of_motion) but can't work out what the correct one for my problem is...

Any ideas? Thanks!

© Stack Overflow or respective owner

Related posts about velocity

Random movement of wandering monsters in x & y axis in LibGDX

as seen on Game Development - Search for 'Game Development'
I am making a simple top down RPG game in LibGDX. What I want is ... the enemies should wander here and there in x and y directions in certain interval so that it looks natural that they are guarding something. I spend several hours doing this but could not achieve what I want. After a long time… >>> More
When "W" is held, the character moves forward, but when "W" and "A" is held, movement completely stops

as seen on Game Development - Search for 'Game Development'
I am making a 2D game, and when I hold the key "w", the player goes forward, but when I hold both "w" and "a", the movement stops completely, when I want it to go forward, while shifting to the left. Here is my script: var speed = 4; function Update() { // Make the character walk forward if… >>> More
Is there a way to encode a URL in velocity template

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, Excuse my ignorance but I am new to Velocity and trying to fix someone else's problem. I need to encode a URL inside the velocity template. I create a url and as part of the query string I pass in a page name a user created. This page can contain special characters like ëðû. The url would… >>> More
Calculate initial velocity to move a set distance with inertia

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I want to move something a set distance. However in my system there is inertia/drag/negative accelaration. I'm using a formula like this for it: velocity = oldVelocity + ((velocity - oldVelocity * inertia) where inertia is a fractional value like 0.25 So to move the item a set distance… >>> More
Reference a Map by name within Velocity Template

as seen on Stack Overflow - Search for 'Stack Overflow'
Pretty sure there is an easy answer to this, but just can't find the right VTL syntax. In my context I'm passing a Map which contains other Maps. I'd like to reference these inner maps by name and assign them within my template. The inner maps are constructed by different parts of the app, and then… >>> More

Related posts about motion

Motion - takes snapshot without motion detected

as seen on Super User - Search for 'Super User'
I've been installed the standard motion 3.2.12 package on debian 7.5. I would like to get snapshot ONLY when motion is detected, but it still saves a picture every second without any activity in front of the camera. I'm using a TENVIS JPT3815W IP camera motion.conf here is my configuration file setup_mode… >>> More
Motion - can't get streaming working from a webcam

as seen on Super User - Search for 'Super User'
I'm trying to record a video stream from my Tenvis IP camera with motion 3.2.12 on Debian 7.5. I used the standard debian package with sudo apt-get install motion Assume my DNS IP cam is webcam, user : admin, password : password /etc/motion/motion.conf Bellow are my configuration file settings… >>> More
Novell Files Motion for Judgment and Motion to Strike

as seen on Internet.com - Search for 'Internet.com'
<b>Groklaw:</b> "Novell points out that the only evidence SCO presented regarding malice is testimony by Maureen O'Gara of a conversation with Chris Stone, and no one corroborates her story, first of all, and second, O'Gara admitted she can't recall exactly what was said..." >>> More
Motion detection of a specific object in .net

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to make a .net application where I must detect a specific object the user is holding, using a camera. If the object must have some specific characteristics so that it can be easily recognized and detected from the surrounding space, please give me some tips (ex a green cube?) What would be… >>> More
Novell's Motion to Allow Evidence: SCO Opened the Door

as seen on Internet.com - Search for 'Internet.com'
<b>Groklaw:</b> "SCO's attorney Stuart Singer may have gotten carried away with his theatrical indignation. And when a party slips like this, what lawyers call opening the door, it can indeed have consequences. Novell was just waiting for a moment like this." >>> More