Lecture19-21_1p

Lecture19-21_1p - Lecture 19: based on G: chapter 7...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Momentum Conservation of Momentum Collisions and Impulse Lecture 19: based on G: chapter 7 155
Background image of page 1

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

View Full DocumentRight Arrow Icon
Momentum: Momentum is defined as: The rate of change of momentum of an object is equal to the net force applied to it: this can be shown using Newton’s second law the more momentum an object has, the harder it is to stop it it is a vector with the same direction as velocity! 156
Background image of page 2
Conservation of Momentum: During a collision , measurements show that the total momentum does not change: The total momentum of an isolated system of objects remains constant! 157
Background image of page 3

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

View Full DocumentRight Arrow Icon
158
Background image of page 4
Collisions and Impulse: During a collision, objects are deformed due to the large forces involved. Since the time of the collision is very short, we need not worry about the exact time dependence of the force, and can use the average force . We can write the total change of momentum as: and define the impulse : 159
Background image of page 5

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

View Full DocumentRight Arrow Icon
160
Background image of page 6
Conservation of Energy and Momentum in Collisions Elastic Collisions in One Dimension Inelastic Collisions Lecture 20: based on G: chapter 7 161
Background image of page 7

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

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 18

Lecture19-21_1p - Lecture 19: based on G: chapter 7...

This preview shows document pages 1 - 8. Sign up to view the full document.

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