Return to serprob.problem CVS log

Up to [LON-CAPA] / loncom / homework / CAPA-converter / conversion_wrapper

Annotation of loncom/homework/CAPA-converter/conversion_wrapper/serprob.problem, revision 1.1

1.1     ! albertel    1: <problem>
        !             2: 
        !             3: <import>/res/ohiou/capa/Tools/StdUnits.library</import>
        !             4: <import>/res/ohiou/capa/Tools/StdConst.library</import>
        !             5: <import>/res/ohiou/capa/Tools/StdMacros.library</import>
        !             6:  
        !             7: <hr />
        !             8: <displayduedate />
        !             9: <displaytitle />
        !            10: 
        !            11: 
        !            12: 
        !            13: <script type="loncapa/perl">
        !            14: # ****************************************************** 
        !            15: # /  Serway & Faughn chapter 5 problem 68 difficulty 3
        !            16: # /  written at MSU July 1998   T&T
        !            17: # /****************************************************** 
        !            18: # /BEG prob_val=1
        !            19: # /LET try_val=99
        !            20: # /HIN space for hints
        !            21: </script>
        !            22: 
        !            23: <script type="loncapa/perl">
        !            24: $m=&random(2.20,2.505,0.01);
        !            25: $k=&random(100.0,120.5,1.0);
        !            26: $d=&random(15.0,20.05,0.1);
        !            27: $angle=&random(34.0,40.05,0.1);
        !            28: $alpha=&web('alpha','$\alpha$','<i>alpha</i>');
        !            29: $picture=&web('','\centerline{\epsfxsize="2.2in" \epsffile{/res/ohiou/serwaylib/Graphics/Graph05/serw0568.eps}}','<IMG SRC="/res/ohiou/serwaylib/Graphics/Graph05/serw0568.gif">');
        !            30: </script>
        !            31: 
        !            32: <startouttext /><hr />
        !            33: A <display>&format(${m},'2f')</display><display>${kg_u}</display> bloke situated on a rough incline (assume an angle of <display>${alpha}</display> = <display>&format(${angle},'1f')</display><display>${deg_u}</display>) is connected to a spring of negligible mass having a spring constant k = of <display>&format(${k},'0f')</display><display>${NPm_u}</display> (see the figure below).<display>${newline}</display>
        !            34: <display>${newline}</display><display>${picture}</display>
        !            35: The bloke is released from rest when the spring is unstretched, and the pulley is frictionless. The bloke moves <display>&format(${d},'1f')</display><display>${cm_u}</display> down the incline before coming to rest. Find the coefficient of kinetic friction between bloke and incline.
        !            36: <br />
        !            37: <endouttext />
        !            38: 
        !            39: <script type="loncapa/perl">
        !            40: $mu=-($k*$d/100./2.-$m*9.8*&sin($angle*$pi_c/180.))/$m/9.8/&cos($angle*$pi_c/180.);
        !            41: </script>
        !            42: 
        !            43: <numericalresponse answer="$mu" format="2E">
        !            44: 	<responseparam name="tol" type="tolerance" description="Numerical Tolerance" default="2%" />
        !            45: 	<responseparam name="sig" type="int,range,0-12" description="Significant Figures" default="3,5" />
        !            46: 	<textline />
        !            47: </numericalresponse>
        !            48: 
        !            49: 
        !            50: <script type="loncapa/perl">
        !            51: # ******************************************************
        !            52: </script>
        !            53: 
        !            54: <hr />
        !            55: more stuff at the foot.
        !            56: 
        !            57: </problem>