• Announcements

    • khawk

      Download the Game Design and Indie Game Marketing Freebook   07/19/17

      GameDev.net and CRC Press have teamed up to bring a free ebook of content curated from top titles published by CRC Press. The freebook, Practices of Game Design & Indie Game Marketing, includes chapters from The Art of Game Design: A Book of Lenses, A Practical Guide to Indie Game Marketing, and An Architectural Approach to Level Design. The GameDev.net FreeBook is relevant to game designers, developers, and those interested in learning more about the challenges in game development. We know game development can be a tough discipline and business, so we picked several chapters from CRC Press titles that we thought would be of interest to you, the GameDev.net audience, in your journey to design, develop, and market your next game. The free ebook is available through CRC Press by clicking here. The Curated Books The Art of Game Design: A Book of Lenses, Second Edition, by Jesse Schell Presents 100+ sets of questions, or different lenses, for viewing a game’s design, encompassing diverse fields such as psychology, architecture, music, film, software engineering, theme park design, mathematics, anthropology, and more. Written by one of the world's top game designers, this book describes the deepest and most fundamental principles of game design, demonstrating how tactics used in board, card, and athletic games also work in video games. It provides practical instruction on creating world-class games that will be played again and again. View it here. A Practical Guide to Indie Game Marketing, by Joel Dreskin Marketing is an essential but too frequently overlooked or minimized component of the release plan for indie games. A Practical Guide to Indie Game Marketing provides you with the tools needed to build visibility and sell your indie games. With special focus on those developers with small budgets and limited staff and resources, this book is packed with tangible recommendations and techniques that you can put to use immediately. As a seasoned professional of the indie game arena, author Joel Dreskin gives you insight into practical, real-world experiences of marketing numerous successful games and also provides stories of the failures. View it here. An Architectural Approach to Level Design This is one of the first books to integrate architectural and spatial design theory with the field of level design. The book presents architectural techniques and theories for level designers to use in their own work. It connects architecture and level design in different ways that address the practical elements of how designers construct space and the experiential elements of how and why humans interact with this space. Throughout the text, readers learn skills for spatial layout, evoking emotion through gamespaces, and creating better levels through architectural theory. View it here. Learn more and download the ebook by clicking here. Did you know? GameDev.net and CRC Press also recently teamed up to bring GDNet+ Members up to a 20% discount on all CRC Press books. Learn more about this and other benefits here.

Archived

This topic is now archived and is closed to further replies.

Aj37

Displacementr, velocity and acceleration

7 posts in this topic

Suppose that the position vector for a particle is given as r=xi+yj, with x=at+b and y=ct+d, where a = 1m/s, b=1m, c=0.125m/s^2, and d=1m. a. Calculate the average velocity during the time interval from t=2.00s to 4.00s. b. Determine the velocity and the speed at t=2.00s. I can''t see where they are getting this answer. answer a. average velocity =(x(4.00) - x(2.00)/4.00s - 2.00s)i + (y4.00)-y(2.00)/4.00s - 2.00s))j =(5.00m-3.00m/2.00s)i+(3.00m - 1.50m/2.00s)j Average velocity = (1.00i+0.750j)m/s
0

Share this post


Link to post
Share on other sites
The average velocity is given by the change in displacement divided by the change in time.

(r2 - r1) / (t2 - t1)

= (x2 - x1)i + (y2 - y1)j / (t2 - t1)

= [(x2 - x1)/(t2 - t1)]i + [(y2 - y1)/(t2-t1)j]

Simply plug in what x and y are (at + b, ct + d) and solve, it should work out.

Hope that helps!
0

Share this post


Link to post
Share on other sites
I haven''t been around much lately, so maybe someone can answer a question for me. When exactly did this place change from the math/physics forum to the math/physics homework forum?
0

Share this post


Link to post
Share on other sites
It happens with everything as the bar is, so to speak, lowered. It''s an inevitable trend.
0

Share this post


Link to post
Share on other sites
It is the physics/math forum as long as it pertains to physics & math I dont see the problem.

0

Share this post


Link to post
Share on other sites
I tend to agree with Dracoliche. There have been several questions in different threads, and from a couple of different members, that have every appearance of being homework problems. That bothers me. The purpose of homework is to help you learn to solve problems for yourself. And that doesn''t mean find or steal someone else''s solution. Personally, I''m inclined to close the threads and delete the answer posts. But I will seek guidance before proceeding with this action. After all, without seeing proof, I can''t say for certain that the questions are homework questions.

I do offer this opinion to those who would post homework questions here, hoping to get an answer and make their life easier. Your education is not a free ride. You have to work for it. Otherwise, you actually have cheated yourself out of half of the education. Even if you can get away with cheating in school, it will catch up with you sometime. Will you feel good about yourself when you don''t have the problem solving skills to complete basic tasks once you eventually get a job? Do the work now, for yourself. You''ll be much more confident, and you will have those skills to be successful in life.

Graham Rhodes
Senior Scientist
Applied Research Associates, Inc.
0

Share this post


Link to post
Share on other sites
I''m closing this thread and several others because the question appears to be a school homework assignment from a math class. The purpose of homework is to teach students to build their comprehension of a subject and their problem-solving skills, possibly with the assistance of other students in the same class or teachers of the class. Especially for math problems such as the one posed here, it is absolutely NOT appropriate to seek the answers from folks outside one''s class or school.

These forums are to be used for assistance in game development activities only.

Graham Rhodes
Senior Scientist
Applied Research Associates, Inc.
0

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.