Lecture04_Pushkar_2012_Jan23

Lecture04_Pushkar_2012_Jan23 - PHYSICS 220 Lecture 04...

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

View Full Document Right Arrow Icon
Lecture 4 Purdue University, Physics 220 1 Lecture 04 Forces and Motion in 1 D Textbook Sections 3.2-3.6 PHYSICS 220
Background image of page 1

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

View Full DocumentRight Arrow Icon
Lecture 3 Purdue University, Physics 220 2 Un importable 2012 #00424301,2.00,2.00 #0E00D8D6,2.00 #2236D4C0,4.00,4.00 #225BEB92,4.00 #80330CBF,4.00,4.00 #809B0813,2.00 #81709E6F,2.00,2.00 #817EE11E,6.00 • #81C6B5F2,2.00,2.00 #821C4BD5,2.00 #8279AE55,4.00,4.00 #831033A0,4.00 #8341E92B,6.00,6.00 #834C955A,6.00 #834F418D,6.00,6.00 #8351A674,4.00 #83CA7831,4.00,4.00 #83DF98C4,6.00
Background image of page 2
Lecture 4 Purdue University, Physics 220 3 Mass and Weight Mass: quantifies the amount of inertia that an object possesses – an intrinsic property of the object Weight (Gravitational force exerted by the Earth) W = mg (g-acceleration due to gravity) g = GM earth /(r earth ) 2 = 9.8 m/s 2 (G – universal gravitational constant, more in Chapter 5)
Background image of page 3

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

View Full DocumentRight Arrow Icon
Lecture 5 Purdue University, Physics 220 4 mg N y x Apparent Weight Recall: Σ F = m a Consider person accelerating up in an elevator Draw FBD Apply Newton’s second law N – mg = ma N = m(g+a) Apparent weight is equal to normal force from scale or floor Note: in free fall a=-g so N=0
Background image of page 4
Lecture 5 Purdue University, Physics 220
Background image of page 5

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

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/05/2012 for the course PHYS 220 taught by Professor Chang during the Spring '09 term at Purdue University-West Lafayette.

Page1 / 16

Lecture04_Pushkar_2012_Jan23 - PHYSICS 220 Lecture 04...

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

View Full Document Right Arrow Icon
Ask a homework question - tutors are online