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## General Physics

by: Clair Daugherty DVM

12

0

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# General Physics PHY 201

Clair Daugherty DVM
Marshall
GPA 3.67

Ashok Vaseashta

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COURSE
PROF.
Ashok Vaseashta
TYPE
Class Notes
PAGES
0
WORDS
KARMA
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## Popular in Physics 2

This 0 page Class Notes was uploaded by Clair Daugherty DVM on Sunday November 1, 2015. The Class Notes belongs to PHY 201 at Marshall University taught by Ashok Vaseashta in Fall. Since its upload, it has received 12 views. For similar materials see /class/233279/phy-201-marshall-university in Physics 2 at Marshall University.

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Date Created: 11/01/15
Newton s Law of Motion and Free Body Diagrams So simple Even a caveman can do it 2222222 07 Recap To calculate the range in terms of initial velocity and angle of the launch 2v A hunter aims at a target 120 m away Bullet leaves g Gun at 250 msec 2V By how much will it miss Range 2 R x vxot vxO The target g At What angle should the R 2v02 sin 9 cos 9 2 v02 sin 26 Gun be aimed at to hit g g The target 7 v k L tu 450 g 21 32007 Contents Introduction to concept of force Newton s Laws of Motion Concept of Inertia Inertial Reference Frame Mass and Weight the Force of gravity and the normal force Vector forces and Free body diagrams Friction Static and Kinetic friction Inclined plane Problem solving Classical Mechanics Describes the relationship between the motion of objects in our everyday world and the forces acting on them Newtonian Physics Conditions when Classical Mechanics does not apply Quantum Physics very tiny objects lt atomic sizes objects moving near the speed of light 21 32007 Introduction to concept of Force Usually think of a force as a push or pull Vector quantity May be contact or field force Example pushing car 21 32007 Contact forces Field forces C o nta ct and Field Forces a w F e h l Fundamental Forces Types Strong nuclear force Electromagnetic force Weak nuclear force Gravity Characteristics All field forces Listed in order of decreasing strength Only gravity and electromagnetic in mechanics 21 32007 Force may not always result in motion Fundamental and Philosophical difference between Aristotle and Galileo 21 32007 Newton s First Law of Motion Every body continues in its state of rest or of uniform speed in a straiqht line unless acted on by a nonzero net force The tendency of a body to maintain its state of rest or of uniform motion in a straight line is called inertia 21 32007 Newton s First Law cont External force any force that results from the interaction between the object and its environment Alternative statement of Newton s First Law When there are no external forces acting on an object the acceleration of the object is zero 21 32007

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