Freebody - Physics 201 Lecture 6 Dynamics More on Forces...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
3/27/08 Physics 201, UW-Madison 1 Physics 201: Physics 201: Lecture Lecture 6 Dynamics Dynamics More on Forces More on Forces Free Body Diagrams Free Body Diagrams
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
3/27/08 Physics 201, UW-Madison 2 Dynamics Dynamics Isaac Newton (1643 - 1727) published Principia Mathematica in 1687. In this work, he proposed three “laws” of motion: Law 1 : An object subject to no net external force is at rest or moves with a constant velocity, ( if viewed from an inertial reference frame). ! F net = ! F i i ! = ma Law 2 : For any object, ! F a , b = ! ! F b , a Law 3 : Forces occur in pairs: (For every action there is an equal and opposite reaction.)
Background image of page 2
3/27/08 Physics 201, UW-Madison 3 The Normal Force The Normal Force When person is holding the bag above the table he must supply a force. When the bag is placed on the table, the table supplies the force that holds the bag on it That force is perpendicular or normal to the surface of table
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Physics 201, UW-Madison 4 Newton Newton s Third Law s Third Law For every action , there is an equal and opposite reaction . • Finger pushes on box F finger box = force exerted on box by finger F finger box F box finger • Box pushes on finger
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/27/2008 for the course PHYS 201 taught by Professor Walker during the Spring '08 term at University of Wisconsin.

Page1 / 17

Freebody - Physics 201 Lecture 6 Dynamics More on Forces...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online