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## Chapter 2 Notes

by: Jacob Edwards

15

0

2

# Chapter 2 Notes 80218 - PHYS 1220 - 001

Jacob Edwards
Clemson
GPA 3.2

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These notes cover chapter 2
COURSE
Physics with Calculus I
PROF.
Lih-sin The
TYPE
Class Notes
PAGES
2
WORDS
CONCEPTS
Physics
KARMA
25 ?

## Popular in Physics 2

This 2 page Class Notes was uploaded by Jacob Edwards on Thursday January 28, 2016. The Class Notes belongs to 80218 - PHYS 1220 - 001 at Clemson University taught by Lih-sin The in Winter 2016. Since its upload, it has received 15 views. For similar materials see Physics with Calculus I in Physics 2 at Clemson University.

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Date Created: 01/28/16
Chapter 2 PHYS 1220 Kinematics-The careful description of motion that is independent of its cause Dynamics- Involves the cause of motion One-Dimensional Kinematics- motion can be rotational, vibrational, or translation  Rotational motion- A spinning motion  Vibrational Energy- Back and forth motion  Translation Energy- Moving from point a to point b o A translating object can be shown as a particle  Most kinematics are shown with vectors o A vector has a magnitude and a direction o A scalar is a quantity that has no direction and is only magnitude  Kinematics can be expressed by using a motion diagram o A motion diagram is an illustration that will depict an object at different time intervals o These diagrams are often showed with planets Vectors-  The unit vectors compose of i, j, and k o i is the x direction o j is the y direction o k is the z direction  The Magnitude of a vector Q is asked for by lQl  The factor that appears in front of a vector is called a scalar Motion-  Position is shown in position vs time graphs  The x-axis is typically time and the y coordinate is distance  The derivative of these graphs or functions is the velocity  Displacement is the change in position (This would be the change from the initial position)  The distance traveled is the length of the whole path that is covered  Average velocity is equal to the distance in the x direction divided by the change in time xfinal initial tfinal initial  How fast an object moves without regard to direction is average speed distance Average Speed= ∆time  Instantaneous velocity is found by taking the derivative of the position, it can be positive or negative  Instantaneous speed is the magnitude of initial velocity  The average acceleration is the change of velocity over a time interval Δv Δt  The instantaneous acceleration is the derivative of velocity  Negative acceleration is deceleration Five Kinematic Equations http://gradeelevenphysics.weebly.com/uploads/1/6/4/7/16477380/2057736.png?535 Free Fall Acceleration-  Free fall is when an object is under the influence of gravity  Gravity is equal to 9.8 m/s 2

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