Another very common real-world physics problem will involve something called an Atwood machine, which is essentially a mass thats used to pull another mass upwards. In ideal situations, the mass of the string and friction will be negligible unless otherwise stated. As with most problems, the best way to approach an Atwood is to draw a free-body diagram to show the forces, then use 1 dimension mechanics to solve for what you need. Thankfully, there is no x-component or real radial component to consider, unless friction is a factor. With this we have everything we need to make the next step into the world of mechanics: work.
The tension is constant in a light string passing over a massless, frictionless (ideal) pulley.
To analyze an Atwood Machine, first adopt a sign convention for positive and negative motion, then analyze each mass separately using Newton’s 2nd Law equations.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
This book includes a comprehensive review of the key AP Physics C concepts and targeted strategies for acing every section of the exam. Additionally, the book includes two full length practice tests with full answer explanations.
The book offers a complete review of your AP course, strategies to give you the edge on test day, and plenty of practice with AP-style test questions. It includes 2 full length practice exams modeled on the real test, 3 separate plans to fit your study stle, review material updated to the most recent tests, and all the terms and concepts you need to know.