Download presentation

Presentation is loading. Please wait.

Published byAnnette Proudfoot Modified over 2 years ago

1
Define impulse and linear momentum Systems of particles Conservation of linear momentum Explosions and collisions Cats playing with Newton's cradle Lecture 14: Linear momentum

2
Linear Momentum Vector!

3
Impulse Vector!

4
Change in momentum and impulse Integrate:

5
Example: kicking a ball

6
System of particles Linear momentum vector of system

7
System of particles Internal forces occur in action-reaction pairs, cancel. Only external forces remain

8
Conservation of linear momentum If no external forces act: Example: explosions

9
Example: Explosion A firecracker of mass M is traveling with speed V in the positive x-direction. It explodes into two fragments of equal mass. Fragment A moves away at an angle θ above the positive x-axis, as shown in the figure. Fragment B moves along the negative y-axis Find the speeds of the fragments.

10
Summary of Litany for Momentum Problems 1.Draw before and after sketch 2.Label masses and draw momentum/velocity vectors 3.Draw vector components 4.Starting equation. 5.Conservation of momentum if appropriate 6.Sum initial and final momenta 7.Express components 8.Solve symbolically

11
Short collisions

12
Example: Collision

13
Energy in collisions Demo: Elastic and inelastic 1-D collisions on air track

14
Fractional change of kinetic energy

Similar presentations

Presentation is loading. Please wait....

OK

Chapter 7 Linear Momentum

Chapter 7 Linear Momentum

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on google glasses free download Ppt on ufo and aliens are they real Ppt on producers consumers and decomposers in a food Ppt on renewable energy in bangladesh Ppt on history of badminton sports Ppt on judicious use of water Ppt on shell scripting tutorial Ppt on number system for class 9 cbse Ppt on cartesian product of sets Liquid crystal on silicon display ppt online