PHYS 100 Chapter 2.6: CHAPTER 2.6-2.7
29 Dec 2016
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Document Summary
Pictorial representations act as an aid to solving problems. It shows all of the important details that we need to keep track of and will be very important in solving motion problems. Drawing a pictorial representation: sketch the situation (show the beginning and the end of the motion), establish a coordinate system, draw symbols, list of values should include=>known information and desired unknowns. As we translate a problem into a form we can solve, we will combine these elements into what we will term a visual overview. A visual overview consists of: a motion diagram, a pictorial representation, a graphical representation, a list of values. Free fall: when an object moves under the influence of gravity only, and no other forces. Any two objects in free fall, regardless of their mass, have the same acceleration. On earth, air resistance is a factor. An acceleration of 9. 8m/s2 is an acceleration of 1g. Acceleration (in units of g)=acceleration (in units of m/s2)/9. 8m/s2.
