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[LON-CAPA] /
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conversion_wrapper /
serprob.txt
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Wed Mar 20 18:15:00 2002 UTC (22 years, 5 months ago) by
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- adding Ohio Universities CAPA -> LON-CAPA cleanup scripts
1: //******************************************************
2: // Serway & Faughn chapter 5 problem 68 difficulty 3
3: // written at MSU July 1998 T&T
4: //******************************************************
5: //BEG prob_val=1
6: //LET try_val=99
7: //HIN space for hints
8: /IMP "/serway-lib/Tools/Problem#"
9: /LET m=random(2.20,2.505,0.01)
10: /LET k=random(100.0,120.5,1.0)
11: /LET d=random(15.0,20.05,0.1)
12: /LET angle=random(34.0,40.05,0.1)
13: /LET alpha=web("alpha","$\alpha$","<i>alpha</i>")
14: /LET picture=web("","\centerline{\epsfxsize=2.2in \epsffile{/serway-lib/Graphics/Graph05/serw0568.eps}}","<IMG SRC=/serway-lib/Graphics/Graph05/serw0568.gif>")
15: A /DIS(m:2f)/DIS(kg_u) block situated on a rough incline (assume an angle of /DIS(alpha) = /DIS(angle:1f)/DIS(deg_u)) is connected to a spring of negligible mass having a spring constant k = of /DIS(k:0f)/DIS(NPm_u) (see the figure below)./DIS(newline)
16: /DIS(newline)/DIS(picture)
17: The block is released from rest when the spring is unstretched, and the pulley is frictionless. The block moves /DIS(d:1f)/DIS(cm_u) down the incline before coming to rest. Find the coefficient of kinetic friction between block and incline.
18: /LET mu=-(k*d/100./2.-m*9.8*sin(angle*pi_c/180.))/m/9.8/cos(angle*pi_c/180.)
19: /ANS(mu:2E,tol=2%,sig=3 plus 2,wgt=prob_val,tries=try_val)
20: //******************************************************
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