Lecture_4_(Student_Handout)

# Lecture_4_(Student_Handout) - PHYS 172: Modern Mechanics...

This preview shows pages 1–4. Sign up to view the full content.

Summer 2009 PHYS 172: Modern Mechanics Lecture 4 – The Momentum Principle & Predicting Motion Read 2.6–2.10 CLICKER QUESTION #1-2

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

View Full Document
Motion Graphs With Momentum and Force Today: The Momentum Principle Reciprocity and Multiparticle Systems Momentum As a Measure of Motion Applying Momentum Principle: Thrown Ball Last Time: momentum of an object: 2 1 1 v c γ = ⎛⎞ ⎜⎟ ⎝⎠ G system surroundings pick a system: momentum principle: impulse
Applying the Momentum Principle (p. 46) 1. Choose a (some portion of universe). Everything else outside that interacts significantly with the system is called 2. List objects in surroundings that have significant influence on system; make appropriate diagrams 3. Choose initial and final times 4. Apply the momentum principle to the chosen system: Substitute known values into the terms of the momentum principle. Use position update if needed. 5. Check units and reasonableness of your answer net p Ft Δ G G Throwing A Ball 1. how long will it take to get to the top of its trajectory? 2. what is the ball’s position at the top of the trajectory?

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 09/14/2009 for the course ENGR 126 taught by Professor Oakes during the Fall '08 term at Purdue University-West Lafayette.

### Page1 / 11

Lecture_4_(Student_Handout) - PHYS 172: Modern Mechanics...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online