physics chapter 7 linear momentum n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Physics Chapter 7: Linear Momentum PowerPoint Presentation
Download Presentation
Physics Chapter 7: Linear Momentum

Loading in 2 Seconds...

play fullscreen
1 / 5

Physics Chapter 7: Linear Momentum - PowerPoint PPT Presentation


  • 406 Views
  • Uploaded on

Physics Chapter 7: Linear Momentum. Christopher Chui. Linear Momentum. Linear momentum, p = mv Newton’s 2 nd law: The rate of change of momentum of a body is equal to the net force applied to it. S F = D p / D t Conservation of momentum for two bodies: momentum before = momentum after

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Physics Chapter 7: Linear Momentum' - roger


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
physics chapter 7 linear momentum

Physics Chapter 7: Linear Momentum

Christopher Chui

Physics 7: Linear Momentum - Christopher Chui

linear momentum
Linear Momentum
  • Linear momentum, p = mv
  • Newton’s 2nd law: The rate of change of momentum of a body is equal to the net force applied to it. SF = Dp / Dt
  • Conservation of momentum for two bodies: momentum before = momentum after
  • The total momentum of an isolated system of bodies remains constant
  • Impulse = FDt = Dp = change in momentum

Physics 7: Linear Momentum - Christopher Chui

conservation of energy momentum in collisions
Conservation of Energy & Momentum in Collisions
  • In an elastic collision, KE is conserved
  • In inelastic collisions, friction and heat are generated
  • If two objects stick together after collision, the collision is inelastic
  • Inelastic collisions are not conservative

Physics 7: Linear Momentum - Christopher Chui

problem solving momentum conservation and collisions
Problem Solving: Momentum Conservation and Collisions
  • Be sure no external force acts on the system
  • Draw a diagram of the initial situation. Do the same after the collision
  • Choose a coordinate system and label + or –
  • Write momentum conservation equations
  • If elastic, conservation of KE also applies: total initial KE = total final KE
  • Solve the unknowns using simple algebra

Physics 7: Linear Momentum - Christopher Chui

center of mass cm
Center of Mass (CM)
  • CM is the point where the mass is centered
  • In motion, an object moves wrt the CM
  • The general motion of an extended body is the sum of the translational motion of the CM, and rotational, vibrational, or other types of motion about the CM
  • For most purposes, CM is the same as CG
  • CM can be outside the body
  • The CM of a system of particles with total mass M moves like a single particle of mass M acted upon by the same net external force

Physics 7: Linear Momentum - Christopher Chui