Homework 6: due after midterm week Chapter 6: Work and Energy Definition of work Work-kinetic energy theorem

Work Kinetic-Energy Theorem: (Net Work done on object] change in kinetic energy of object

Problem: How High? A projectile of mass m is launched straight up from the surface of the earth with initial speed vo. What is the maximum distance from the center of the earth Rmax it reaches before falling back down

Centripetal Acceleration UCM results in acceleration: ← Magnitude a=vr= since=

An Example Consider the following two cases

Announcements Lectures available on the web(short version) For over-enrollment please go to the Physics office P107 Laboratory sessions start next week Gotomywebsitewww.phys.uconn.edu/-rcote Syllabus+ homeworks lectures, etc Webassign

Physics 121, Sections 9, 10, 11, and 12 Lecture 4 Announcements Lectures available on the web(short version) For over-enrollment please go to the Physics office P107 Laboratory sessions start next week Gotomywebsitewww.phys.uconn.edu/-rcote Syllabus+ homeworks lectures, etc Webassign gotowww.webassign.netandlogin

Katzenstein Distinguished Lecture prof. Franck Wilczek Nobel Prize in Physics 2004 From MIT Title: The Universe is Strange Place Where: Room P--36 When: Friday at 4: 00PM Refreshments at3:00 PM in front of P--36 Come for great talk

The impulse of the force action on an object equals the change in momentum of the object

The kinetic energy of a rotating system looks similar to that of a