PHYS 2101 Lecture : Lecture7
Document Summary
Wednesday feb. 1, 2012: si sessions: (i emailed this info to you ) Of ce hours: wednesday and thursday from 3:00-4:00 in allen 039. Hw3 is due monday at 11:59pm: exam 2 : feb 28@ 6pm in lockett 16 (our section) Kinetic energy: energy is transferred not created/eliminated, translational kinetic energy: energy associated with state of translational motion, -- never negative & is a scalar. Work-kinetic energy theorem change in the kinetic energy of an object net work done on the object. By itself, that force acts to speed up the object. W = : force antiparallel to displacement? d. By itself, that force acts to slow down the object. W < 0: force perpendicular to displacement? cos 90 = 0. By itself, that force has no effect on the objects k. During a storm, a crate is sliding across a.
