Objectives
After studying the material of this chapter, you should be able to:1. Define linear momentum and write the mathematical formula for linear momentum from memory.
2. Distinguish between the unit of force and momentum.
3. Write Newton's Second Law of Motion in terms of momentum.
4. Define impulse and write the equation that connects impulse and momentum.
5. State the Law of Conservation of Momentum and write, in vector form, the law for a system involving two or more point masses.
6. Distinguish between a perfectly elastic collision and a completely inelastic collision.
7. Apply the laws of conservation of momentum and energy to problems involving collisions between two point masses.
8. Define center of mass and center of gravity and distinguish between the two concepts.
Videos:
Demonstrations:
- Newtons Cradle
We were talking about how a larger runner would knock over a smaller runner.So here's a Smart Car running into Mercedes-Benz.
ReplyDeletehttp://www.youtube.com/watch?v=E_472L2kLp0
Joe R
A smart car vs. a bike would be a better match-up
DeleteFound a video of two guys throwing and catching an egg from over 60 ft and they basically caught it the same way as Mr. Crane described in class. http://recordsetter.com/world-record/egg-toss/9803#contentsection
ReplyDeleteJoe R
Here's an even longer one around 80 yards. http://www.youtube.com/watch?v=VK682TXrqZY
ReplyDeleteJoe R
Watch Joe's posts to see how to catch an egg, this is how not to, enjoy
ReplyDeletehttps://www.youtube.com/watch?v=uLFiubLjdac
I still don't understand how only a sheet would he able to stop the egg. Shouldn't it crack if it hits a tension point on the sheet? Like where you are holding the sheet.
ReplyDeleteIt all depends, if the people holding the sheet are pulling it hard enough the tension at the top might be great enough for the egg to break with enough velocity, but hitting the sheet anywhere else with enough force to break the egg is basically impossible.
DeleteThis comment has been removed by the author.
ReplyDeleteBring eggs tomorrow everyone
ReplyDeleteHeres an experiment I found that relates to what we are learning in class
ReplyDeletehttp://www.youtube.com/watch?v=SNGSf7HG0bQ
-Jack Wallace
I don't really get how this is the same as Newton's cradle
DeleteJoe R
It's not the same as Newton's cradle, but it has to do with how an object in motion stays in motion (Newton's First Law)
DeleteJack Wallace
Like we were discussing airbags in class here is a video compare the difference in having it and not having it. http://www.youtube.com/watch?v=d7iYZPp2zYY
ReplyDeleteJoe R
Here's a video on how a newton's cradle was turned into something crazy.
ReplyDeletehttp://www.youtube.com/watch?v=yVkdfJ9PkRQ
Jack Wallace
I know it's not in English and all but I found another crash test of the smart cars, thought it went well with what we did today http://youtu.be/DqsztP5m_2k
ReplyDeleteThe car carries the other one like the grandma and the boy in that problem today and they catch fire. http://www.youtube.com/watch?v=lgOxWPGsJNY
ReplyDeleteJoe R
This is how car safety has evolved over the years (crash test)
ReplyDeletehttp://www.youtube.com/watch?v=joMK1WZjP7g
Jack Wallace