Giancoli Solutions on Video
Learn physics easily with guided practice.
7th Edition Solutions 6th Edition Solutions Global Edition Solutions
Features
- 1,930 video solutions for all regular problems in Giancoli's 7th Edition and 1,681 solutions for most regular problems in the 6th Edition.
Final answer provided in text form for quick reference above each video, and formatted nicely as an equation, like $E=mc^2$. This is useful if you are in the library or have a slow internet connection.
- Pen colors make the step-by-step solutions clear. Red is used to illustrate algebra steps, and to substitute numeric values in the final step of a solution. When a solution switches to a new train of thought a different pen color emphasizes the switch, so that solutions are very methodical and organized.
- Solutions are classroom tested, and created by an experienced physics teacher.
- Videos are delivered with a high performance content delivery network. No waiting for videos to load or buffer.
- Pause, rewind, repeat, and never miss what is being said.
Sample solution
Giancoli 7th Edition, Chapter 5, Problem 12
(4:49)
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Recent questions and answers
7th Edition Solutions 6th Edition Solutions Global Edition Solutions
Giancoli 7th Edition, Chapter 5, Problem 31
By chaegyunkang on Tue, 09/18/2018 - 16:35For the two values of m2 that you calculated from the quadratic equation, how do you know that m2 is the larger value and not the other value from the quadratic equation?
Giancoli 7th Edition, Chapter 11, Problem 21
By kevin.rosario on Sat, 09/15/2018 - 23:12I did part A on my calculator and I came up with 22.64942355. How did you come up with 2.29Hz?
Thank you.
Giancoli 7th Edition, Chapter 4, Problem 63
By chaegyunkang on Sat, 09/15/2018 - 16:18How do we know that the initial velocity is zero? If it was given a push I thought it would be a non-zero velocity.
Hi chaegyunkang, the presumption here is zero initial velocity, after which a force is applied in order to provide some acceleration. Bobsleds start from rest and the athletes run beside it, pushing it along, before jumping inside (which they do at the 75 meter mark in this case). I suppose some familiarity with bobsledding is called for here, but nevertheless, if an initial speed isn't given in a question, chances are it must be zero. The force applied gives extra acceleration (beyond that provided by gravity), not initial velocity.
Best wishes with your studies,
Mr. Dychko
Giancoli 7th Edition, Chapter 4, Problem 61
By chaegyunkang on Sat, 09/15/2018 - 16:03If the car was skidding what difference would it make to the problem? Does it change to kinetic friction when it starts to skid?
Hi chaegyunkang, it's always true that kinetic friction is less than static friction, all else being equal. In this question, however, it doesn't really matter what type of friction is mentioned, since we're not given the coefficient anyway. What matters is the deceleration the car, from which we calculate the coefficient. Be it a static or kinetic coefficient is not important. The important thing is that the type of friction on the incline is the same type of friction on the level surface so that we can be sure that whatever we calculated on the level surface will still apply on the incline.
All the best,
Mr. Dychko
Giancoli 7th Edition, Chapter 4, Problem 55
By chaegyunkang on Sat, 09/15/2018 - 14:39How do we know that it is a frictionless ramp? Is it because the question does not give us the coefficient of friction so we assume that it is frictionless?
Hi chaegyunkang, thanks for the question. Since the question has a truck driving on the ramp, we assume there is only rolling friction, which we assume is negligibly small. There is no sliding, so there's no kinetic friction. While there is static friction, since we assume the brakes are not being applied (since the ramp is used when the brakes have failed), this means the tire is not applying a horizontal force due to static friction, and so the pavement is not in turn applying a Newton's 3rd law reaction force on the truck. In other words, static friction is not slowing down the truck. There is only rolling friction, which we can ignore.
Hope this helps,
Mr. Dychko
Giancoli 7th Edition, Chapter 2, Problem 42
By EddieG on Wed, 09/05/2018 - 18:50Question #39 a ball is thrown straight up with a speed of 36 m/s. how long does it take to return to its starting point. Question is my teacher teaches out of 7th edition I have 6th edition but can not find this question in my book or on this website.It says on top of my page ch# 2 and page ref 2-7 but cant find it also how come you don't post question you just go to answers only . need to see question sometimes so I can find which edition it is in.
Hi EddieG, thanks for the question. I would love to post the questions, but I've avoided that since it would be a copyright issue with the publisher since I didn't create the questions. Perhaps you can ask your teacher to photocopy just the problems from their 7th Edition text for your reference?
All the best,
Mr. Dychko
Giancoli 6th Edition, Chapter 19, Problem 32
By thesouthportschool on Mon, 08/27/2018 - 18:10this is epic
Giancoli 7th "Global" Edition, Chapter 3, Problem 16
By hugokatich on Mon, 08/20/2018 - 19:43Also, what rule did you use for the triangle in part b? Which rule indicates that Vrx = V1x + V2x?
Thank you for the question. Adding vectors using components is one of the methods for adding vectors. The component method, which is probably the most popular method to use, involves finding the sum of the component of each vector along an axis, and then taking the total as the component of the resultant along that axis. Vrx = V1x + V2x is just an algebraic way of saying that.
All the best,
Mr. Dychko
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