P2_How Do We Describe Motion

# P2_How Do We Describe Motion - How Do We Describe Motion...

This preview shows pages 1–13. Sign up to view the full content.

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

View Full Document

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

View Full Document

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

View Full Document

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

View Full Document

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

View Full Document

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.

Unformatted text preview: How Do We Describe Motion? Remarks • Mastering Physics has an e-book button, which leads to a different book (Knight). – This is o.k. You have a 2 nd code for the SU e- book, accessible outside Mastering Physics. • Labs start Mon Sep 12 • Homework starts Mon Sept 5, due Mon Sep 12, 5pm • Office hours will change somewhat – To be announced on Blackboard Checking Understanding • What is the 3 rd letter in the alphabet? How Do We Describe Motion? From last time: Adding Velocities • Adding velocities – Simple answer: as vectors… • But there is more to it… – Velocity relative to what? v v 2 v 1 v 1 v 2 v v 2 v 1 v Adding velocities • A) Train at rest – Ball: velocity v1 with respect to train v Adding velocities • B) Train moving v v 2 v net Note: Always add (Velocity of ball with respect to train ) + (Velocity of train with respect to ground ) = (Velocity of ball with respect to ground ) Adding velocities • C) Train moving v v 2 v net Adding velocities • D) Train moving v v 2 v net Example: Crosswind Landing Velocity v of aircraft Velocity v2 of air mass with respect to ground (= cross wind) Velocity v net of air mass with respect to ground • Replace: – Ball with aircraft – Train with air mass Checking Understanding In calm air on approach to landing an aircraft descends 50 m for every kilometer of forward motion. This corresponds to a 50 m for every kilometer of forward motion....
View Full Document

{[ snackBarMessage ]}

### Page1 / 40

P2_How Do We Describe Motion - How Do We Describe Motion...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online