How Things Work II
How Things Work II PHYS 6060
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This 2 page Class Notes was uploaded by Ubaldo Jacobson on Monday September 21, 2015. The Class Notes belongs to PHYS 6060 at University of Virginia taught by Staff in Fall. Since its upload, it has received 38 views. For similar materials see /class/209757/phys-6060-university-of-virginia in Physics 2 at University of Virginia.
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Date Created: 09/21/15
University of Virginia Department of Physics Physics 606 How Things Work 11 Lecture 4 Slides Force and Work Physics Concept 0 Net Force 7 The sum ofall forces on an object 7 Determines object s acceleration Newton s Third Law For every force that one object exerts on a second object there is an equal but oppositely directed force that the second object exerm on the first object Experiment If you push on a friend who is moving away from you how will the force you exert on your friend compare to the force your friend exerts on you 1 You push harder 2 Your friend pushes harder 3 The forces are equal in magnitude Forces Present P Ni On ball due to gravity its weight On ball due to support from table On table due to support from ball All three forces have the same magnitude for the stationary ball Forces Present 1 On ball due to gravity its weight 2 On ball due to support from table P air 3 On table due to support from ball Forces Present HeP Nt On earth due to gravity from the ball On ball due to gravity from the earth On ball due to support from table Pa1r Pair On table due to support from ball Since the ball doesn t accelerate 2 and 3 must cancel perfectly
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