Lecture02_Pushkar - Physics 220 Help center is in room 11A There are labs starting already this week Lab syllabus will be handed to you on your

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

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

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

Unformatted text preview: Physics 220 Help center is in room 11A There are labs starting already this week. Lab syllabus will be handed to you on your first lab. Now it is available online as well. Lecture 2 Purdue University, Physics 220 1 Lecture 2 Purdue University, Physics 220 2 Lecture 02 Motion, Forces, and Newton’s Laws Textbook Sections 2.2-2.4 PHYSICS 220 • Mechanics is the area of physics which is concerned with the motion of objects. • Two questions need to be answered to understand mechanics – What causes motion? – Given a particular situation, how will an object move? Definition of Motion • Concepts needed – Position – Velocity – Acceleration • Start by considering “one-dimensional motion” = motion along the straight line Representations of Motion A - shows a motion – Multiple images of a hockey puck traveling across an icy surface B – Motion diagram - shows a position – time graph of the motion – The dots correspond to the distance between the 0 on X- axis to the center of the puck at given time. Motion diagram displacement= change in position during a particular time interval Lecture 1 Purdue University, Physics 220 5 Given the train’s initial position and its final position what is the displacement of the train? A) -26 km B) -29 km C) +29 km D) -23 km E) +23 km Question Velocity (vector) = the distance that an object travels (m) per second (s); v= ∆ x/ ∆ t. What we can say about the direction of vector v ? Lecture 2 Purdue University, Physics 220 7 Velocity vs Speed • Velocity is a vector – Only depends on the displacement between the initial...
View Full Document

This note was uploaded on 04/23/2011 for the course PHYS 220 taught by Professor Chang during the Spring '09 term at Purdue University-West Lafayette.

Page1 / 24

Lecture02_Pushkar - Physics 220 Help center is in room 11A There are labs starting already this week Lab syllabus will be handed to you on your

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