Chapter 3 Physics Notes

# Chapter 3 Physics - Chapter Three Notes Physics 195 VECTORS-In 1dimension we could specify distance with a real number including or sign e.g a

This preview shows pages 1–6. Sign up to view the full content.

1/5/11 Chapter Three Notes Physics 195

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

View Full Document
1/5/11 VECTORS -In 1dimension, we could specify distance with a real number, including + or - sign. e.g., a = -g -In 2or 3dimensions, we need more than one number to specify the distance: -To illustrate this, consider the position vector r in 2 dimensions. Example : Where is UCSD? -Choose origin at SDSUSDSU -Choose coordinates of distance (miles), and normal directions (N-S,E-W) -In this case r is a vector that points about 15 miles north-west.
1/5/11 VECTORS There are two common ways of indicating that something is a vector quantity: -Boldface notation: A -Arrow notation: Unit Vector is a vector having length 1 and no units specify a direction

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

View Full Document
1/5/11 VECTORS The components of r are its (x,y,z)coordinates r = (r ,r ,r )= (x,y,z) Consider this in 2-D (since it’s easier to draw): = x = r cos θ = y = r sinθ where r = | r|
1/5/11 -Used to describe the position of a point in space. -Coordinate system consists of.

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 01/04/2011 for the course PHYS 195 taught by Professor Anderson during the Fall '07 term at San Diego State.

### Page1 / 14

Chapter 3 Physics - Chapter Three Notes Physics 195 VECTORS-In 1dimension we could specify distance with a real number including or sign e.g a

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online