HW3-Solution

HW3-Solution - HW3 Terry Cooke Cal Poly San Luis Obispo...

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: HW3 Terry Cooke: Cal Poly San Luis Obispo Chapter 2, Solution 72 Fh Fh F cos 65 (900 N) cos 65 380.4 N (a) Fx Fh sin 20 Fy F sin 65 (900 N)sin 65° Fz Fh cos 20 (380.4 N)sin 20° Fx 130.1 N, (380.4 N) cos 20 Fz 357 N Fy cos 816 N, Fx F 130.1 N 900 N (b) x x 98.3 cos cos Fy y F Fz F 816 N 900 N 357 N 900 N y 25.0 66.6 z z Chapter 2, Solution 76 (a) Fx F sin 30 cos 60 20 lb (Given) F 20 lb sin 30°cos 60 80 lb F 80.0 lb 104.5 (b) cos x Fx F 20 lb 80 lb 0.25 69.282 lb 0.86615 x Fy cos y (80 lb) cos 30 Fy F 69.282 lb 80 lb y 30.0 Fz cos z (80 lb)sin 30 sin 60 Fz F 34.641 80 34.641 lb z 0.43301 64.3 Chapter 2, Solution 94 AB AB AC AC TAB TAB TAC TAC R λ (40 in.)i (45 in.) j (60 in.)k (40 in.) 2 (45 in.) 2 (60 in.) 2 85 in. (100 in.)i (45 in.) j (60 in.)k (100 in.) 2 TAB AB (45 in.) 2 AB AB AC AC (60 in.) 2 125 in. TAB (510 lb) (40 in.)i (45 in.) j (60 in.)k 85 in. (100 in.)i (45 in.) j (60 in.)k 125 in. (240 lb)i (270 lb) j (360 lb)k TAC AC TAC (425 lb) (340 lb)i (153 lb) j (204 lb)k TAB TAC (580 lb)i (423 lb) j (564 lb)k Then: and cos R x 912.92 lb 580 lb 912.92 lb 423 lb 912.92 lb 564 lb 912.92 lb 0.63532 R x 913 lb 50.6 cos y 0.46335 y 117.6 cos z 0.61780 z 51.8 ...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online