Lecture 2-28 grg sec2

# Lecture 2-28 grg sec2 - Lecture 2-28 Introduction to Wind...

This preview shows pages 1–2. Sign up to view the full content.

Lecture 2-28 Introduction to Wind Newton’s 1 st Law of Motion An object at rest will remain at rest and an object in motion will remain in motion (and will travel at a constant velocity along a straight line) as long as no force is exerted on the object Newton’s 2 nd Law of Motion The force exerted on an object equals it’s mass times the acceleration produced (F=ma) Newton’s 3 rd Law of Motion For every action, there is an opposite and equal reatioin Atmospheric Forces that Cause Winds to Blow Pressure gradient force (High pressure vs. Low Pressure) H L Coriolis Force (Deflection caused by rotating object) CF only affects wind direction not Speed Amount of Deflection depends upon… -Rotation of Earth -The Latitude strong at Poles(felt more greatly at H & L latitudes),negligent to absent at equator -The Object’s speed Increase Wind speed = Increase CF (ex. Hurricane) In Northern Hemisphere: CF causes a RIGHTWARD deflection of moving air particles & vice versa for S. Hem.

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 03/19/2008 for the course GRG 301K taught by Professor Kimmel during the Spring '08 term at University of Texas.

### Page1 / 5

Lecture 2-28 grg sec2 - Lecture 2-28 Introduction to Wind...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online