Tension in a rope pulls throughout the rope. With some clever thought, we can use this fact to our advantage.
By setting up multiple pulleys, we can cause the same tension to be applied multiple times, effectively multiplying our input force.
Why isn't this crazy talk? We'll see why in the lesson on Power when we work on Energy.
Making a good free-body diagram to show where all the forces are is incredibly important! Without it, we won't be able to make sense of the problem.
Remember, if an object is experiencing an acceleration, it must have a force acting on it.
Newton's 2nd Law: Advanced Examples
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 set of features such as Analyzing-Multiple-Concept Problems, Check Your Understanding, Concepts & Calculations, and Concepts at a Glance. This helps the reader to first identify the physics concepts, then associate the appropriate mathematical equations, and finally to work out an algebraic solution.