Physics 101: Lecture 3, Pg 2 Announcements HW 1 and HW2 are due Tuesday January 31 at 6 am. Office hours starts on January 30, Monday in 32 Loomis Read the course description & FAQ on the course web site! E-mail policy reminder: subject line should be Physics 101
Physics 101: Lecture 3, Pg 3 Homework 2 Example Calculate the tension in the left string. x-direction: SF=ma -TL+TRcos(q)= 0 TL= TRcos(q) y-direction: SF=ma TRsin(q) –Mg = 0 TR= Mg / sin(q) Combine: TL= Mg cos(q)/sin(q) TLW q TRy x
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