# Vector Sum Graphical

> Interactive physics simulation for vector addition and graphical problem-solving. (iPhone/iPad app by loo kang wee.)

- Source: https://appshunter.io/ios/app/vector-sum-graphical/id1449949773 (this page in markdown: same URL + `.md`)
- Developer: [loo kang wee](https://appshunter.io/developer/1231378973)
- Category: Education, Utilities
- Price: Free
- Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 34 MB
- Languages: English
- Released: 2019-01-20
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/vector-sum-graphical/id1449949773/reviews.md

## What is Vector Sum Graphical?

About
An open source physics simulation based on codes written by Fu-Kwun Hwang, Loo Kang WEE
more resources can be found here
http://iwant2study.org/ospsg/index.php/interactive-resources/physics/01-measurements


Introduction
Topics
Scalars and vectors Measurement of length and time 
Description
Play with the vector sum Model. The simulation randomly generates different vector A and B every time the reset is clicked. You can drag the vector midpoint to re-position drag the vector head to re-size There are also 3 examples of how this simulation can be used by Teacher Mr. Ezzy Chan. There is also 3 components representation to connect with the related simulation on components of a vector. Drag on the plotting panel to reposition the center to have a better view of the resultant vector.
Challenge:
Take an example from your usual word problem and take a picture of it and try to use the simulation to represent the word problem. After you are done, the simulation should be able to calculate as well as draw the resultant vector. send your completed picture to weelookang@gmail.com to be included as an example in this simulation-model! 
Sample Learning Goals
(f) add two vectors to determine a resultant by a graphical method (b) solve problems for a static point mass under the action of 3 forces for 2-dimensional cases (a graphical method would suffice)

Interesting Fact
This simulation is targeted for O level Physics education, built by teachers for teachers and students.

## Key features

- Vector sum model simulation
- Graphical vector addition
- Drag-and-drop vector manipulation
- Component representation
- Interactive plotting panel
- Physics word problem solver

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/vector-sum-graphical/id1449949773/reviews.md

### 1/5 — This is aids

*2019-04-16, version 0.0.2*

Do not use

## Frequently asked questions about Vector Sum Graphical

### What is Vector Sum Graphical used for?

Vector Sum Graphical is an open-source physics simulation that helps users understand scalars, vectors, and how to add them graphically to find a resultant. It's designed to assist with solving physics word problems visually.

### Who developed Vector Sum Graphical?

Vector Sum Graphical was developed by teachers for teachers and students, specifically for O-level Physics education. The code is based on work by Fu-Kwun Hwang and Loo Kang WEE.

### What physics topics does Vector Sum Graphical cover?

The simulation focuses on topics such as scalars and vectors, measurement of length and time, and adding two vectors to determine a resultant graphically. It also supports solving problems for static point masses under the action of three forces.

### How can I use Vector Sum Graphical to solve problems?

You can use the simulation to represent word problems by taking a picture and then using the tool to draw and calculate the resultant vector. Completed examples can be sent to weelookang@gmail.com to be included as demonstrations.

### What devices is Vector Sum Graphical available on?

Vector Sum Graphical is available on iPhone, iPad, iPod, and Apple Watch devices, making it accessible across various Apple platforms.

### Is Vector Sum Graphical free to use?

Yes, Vector Sum Graphical is available for free. It is an open-source application with no cost to download or use.

### How often is Vector Sum Graphical updated?

The application was last updated on January 21, 2019, with version 0.0.2. The initial release date was January 20, 2019.

### What is the user rating for Vector Sum Graphical?

Vector Sum Graphical has a rating of 1.0 stars based on 1 rating. This indicates a very low user satisfaction based on the available feedback.

## Version history (last 1 release)

### 0.0.2 — 2019-01-21

bug fixes
added zoom and drag
resize the axis scale to fit handphones

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*