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7 Section 7.5 8.
0 7 cos2 x dx
y 2 (10 2 3 4 10. (a) F y) dy s
1/8 ks, so 150
1 ,F 8 k
1 8 1 and k 16 2400 lb/in. Then for 9.
0 7 2400 300 lb.
1/8 10.
0 sin2 x dx (b)
0 2400x dx 1200x 2 18.75 in.lb
0 Section 7.5 Exercises
5 1.
0 3 xe x/3 dx
x dx 4 3e x/3 5 (3 sin x)
0 24 e 5/3 11. When the end of the rope is x m from its starting point, the 9
x 4
3 0 4.4670 J (50 F(x)
50 x) m of rope still to go weigh (0.624)(50 x) N. The total work is 0.624 50x
(p , V ) 2 2 (p , V ) 1 1 2.
0 x sin 4 4 x 4 3 2 x cos 4 2 2...
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This note was uploaded on 10/05/2011 for the course MAC 1147 taught by Professor German during the Spring '08 term at University of Florida.
 Spring '08
 GERMAN

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