Written Homework 3 Solutions

# Written Homework 3 Solutions - 221Fall2007 Phvsics 11...

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Phvsics 221Fall2007 Written Homework due Tuesday September 11 1--- You head directty across a straight river ofwidth 100 r4 surimmingata speed of 1.5 nrls relative tothe water. You arrive atthe opposite bank having been swept downstream a distance of 50 m. (a) How long does the journey take? O) What is the speed of the current? (c) Wtrat is your spee4 relative to the ground, during the swim over? (d) At what angle, with respect to the up stream directiorq should you have headed so as to go straight across the stream (i.e. so as to arrive at the point directly across the stream from your starting point)? Vx - i\$ \,f ^^/S \x=\oarnrr \T= n \X = \ oo,^nn vx Kr s= Srrs<,E YoJ A{tS S\^) t M n\V (r \ N X^ A tRF <jf torJ th\\ s \S A \- D flA-oBt€ tv\ CNustN G You To Go SO,-^ [o'.rr-r ! r V.{:-5 "%g,-1 5 =-c,-1 t ,'^l s €G,-l s, "\ + loo avr \$ THe cutasuT , vy \5 sT\Exrn f\) (G'-1 <-\ too {L 1s(\L \) D uo<-r{Y 5 1r 11 1 I -X J E,s>.^{Y t S T; =fu,1^rs\ i. -(o,l{ ^f s\ i tl \V [= V** Vva : \,61 .h\ ls \V o &{\ ia* {o Strr ti'rr SFA.A {G\i 1 N Cqo I S y,r.t NJa€E fo S\^i\r\^ 5 TNS Tb\g Y-Cc'npo^€J *F \,^,L VLt-trtC rfY tI Et AL 4t",1 CPPo5

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## This homework help was uploaded on 03/27/2008 for the course PHYS 221 taught by Professor Herrera-siklody during the Fall '08 term at Iowa State.

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Written Homework 3 Solutions - 221Fall2007 Phvsics 11...

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