Pre-Calc Homework Solutions 406

Pre-Calc Homework Solutions 406 - 406 Section 10.2 (d) w v...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 406 Section 10.2 (d) w v 17. The vector v is horizontal and 1 in. long. The vectors u and 11 w are in. long. w is vertical and u makes a 45 angle 16 with the horizontal. All vectors must be drawn to scale. (a) v u u+v u u+v+w=0 (b) 19. u+v+w v w 32 42 5; 1 3, 4 5 3 4 , 5 5 20. 42 ( 3)2 5; 1 4, 5 1 17 3 4 , 5 3 5 15 8 , 17 17 u 21. v u uv ( 15)2 82 17; 15, 8 (c) 22. ( 5)2 1 29 ( 2)2 2 29; 5 29 5, 1 2 t , 2 29 (d) u w uw 23. x ,y (y )2 2 1 1 t 17 . 2 ; for t 1, x 1 ,y 2 2, and (x )2 Tangent: Normal: 18. The angles between the vectors is 120 and vector u is horizontal. They are all 1 in. long. Draw to scale. (a) u 1 ,2 17 2 2 1 2, 2 17 1 17 4 , , 4 17 , 1 17 . 17 1 ,y 2 24. x v uv 1 t 1 ,y (y )2 2 1; for t 5 2 3, x 1, and (x )2 (b) Tangent: Normal v . 1 5 1 2 2 5 u 1 ,1 5 2 2 5 , 2 5 , 1 5 1, , . uv+w 25. x y w 4 sin t, y 5 , and 2 5 cos t; for t (y )2 2 3, 5 2 73 . 2 3 ,x 2 3, (x )2 2 73 Tangent (c) 12 21 9 , 5 73 2u 0.811, 0.585 , Normal v 2 5 ,2 73 2 3 5 73 , 12 219 2u v 0.585, 0.811 . ...
View Full Document

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.

Ask a homework question - tutors are online