Vector Statics problems

Oct 4th, 2017
Anonymous
Category:
Mathematics
Price: $10 USD

Question description

I have couple problems that i need to be solved. I am going to post the problems here, and attach a file to solve the problems. without the file you can't solve any problem. in the problems it says that this problem refer to digram in the file, so just go check the file.

watch out the numbers are different than the ones in the file.


Problem 5 (4 pts) Refer to Hibbeler problem 3.19 for: Use 2.2 Mg, 1.3 Mg, 0.5 Mg, 3.9 Mg, 7.9 m, 3.2 m, 7.6 m and 14.1 m instead of 2 Mg, 1.5 Mg, 0.5 Mg, 6 Mg, 7.5 m, 4 m, 9.5 m and 12.5 m.

(𝑀𝑅)𝐴 = ________________ (𝑀𝑅)𝐡= ________________

Problem 6 (3 pts) Refer to Hibbeler problem 3.20 for: Use 2.2 Mg, 1.3 Mg, 0.5 Mg, 7.9 m, 3.2 m, 7.6 m and 14.1 m instead of 2 Mg, 1.5 Mg, 0.5 Mg, 7.5 m, 4 m, 9.5 m and 12.5 m

π‘šπ‘šπΆπΆ = ________________

Problem 7 (4 pts) Refer to Hibbeler problem 3.23 for: Use 60 N, 61Β°, 381 mm, 270 mm instead of 50 N, 60Β°, 400 mm and 300 mm

𝑀𝑀𝐢𝐢 = ________________ 𝐹𝐹 = ________________

Problem 8 (3 pts) Refer to Hibbeler problem 3.28 for: Use 119 N m, 𝐋𝐋𝐀𝐀𝐀𝐀 = 296 mm, 𝐋𝐋𝐁𝐁𝐁𝐁 = 273 mm, 35Β°, and 18Β° instead of 120 N m, 𝐿𝐿𝐴𝐴𝐴𝐴 = 300 mm, 𝐿𝐿𝐡𝐡𝐡𝐡 =300 mm, 30Β° and 15Β°.

𝐹𝐹 = ________________

Problem 9 (3 pts) Refer to Hibbeler problem 3.34 for: Use 2.5 m, 4.3 m, 3.1 m, 6.5 m, 750 N, and 444 N instead of 2 m, 3 m, 2.5 m, 6 m, 780 N and 420 N.

𝑀𝑀𝑂𝑂 = __________________________

Problem 10 (3 pts) Refer to Hibbeler problem 3.37 for: Use 420 mm, 450 mm, 175 mm, 230 mm, 45Β°, 35Β°, and 65 N instead of 400 mm, 300 mm, 200 mm, 250 mm, 40Β°, 30Β°, and 80 N

𝑀𝑀𝐴𝐴= __________________________________

Problem 11 (3 pts) Refer to Hibbeler problem 3.38 for:

𝑀𝑀𝐡𝐡= _______________________________________________

Problem 14 (5 pts) Refer to Hibbeler problem 3.49 for: Use 28 N, 65Β°x-axis to F, 50Β° y-axis to F, 85 mm, 102 mm x-y panel, and 125 mm instead of 30 N, 60Β° x-axis to F, 60Β° y-axis to F, 50 mm, 100 mm x-y panel and 100 mm. Must calculate the required third angle – Do not blindly use 45Β°).

𝑀𝑀𝐴𝐴= ________________ 𝛼𝛼 = ________________ 𝛽𝛽 = ________________ 𝛾𝛾 = ________________ 𝑀𝑀 = ________________

Problem 15 (4 pts) Refer to Hibbeler problem 3.51 for: Use 315lb, 5.6 ft, 2.3 ft, 5.45 ft, 1.5 ft, 3.2ft, and 4.7 ft instead of 300 lb, 6 ft, 2.5 ft, 5.5 ft, 2 ft (from z-axis to C), 2ft (from z-axis to B) and 4 ft.

W=........................




Tutor Answer

(Top Tutor) Prof.Demidko
School: UC Berkeley

Hello, am not yet done, I will be uploading a final sooner

Problem 5 (4 pts) Refer to Hibbeler problem 3.19 for: Use 2.2 Mg, 1.3 Mg, 0.5 Mg, 3.9
Mg, 7.9 m, 3.2 m, 7.6 m and 14.1 m instead of 2 Mg, 1.5 Mg, 0.5 Mg, 6 Mg, 7.5 m, 4 m,
9.5 m and 12.5 m.
(𝑀𝑅)𝐴 = ________________ (𝑀𝑅)𝐡= ________________
Solution
(𝑀𝑅)𝐴 =(𝑀𝑅)𝐡=Fd

Resultant moment at point A
βˆ‘ 𝑀𝐴 = 0
𝑀𝐴 = [(2.2 βˆ— 9.81)(14.1) + (1.3 βˆ— 9.81)(7.6) βˆ’ (0.5 βˆ— 9.81)(3.2) βˆ’ (3.9 βˆ— 9.81)(7.9)]
= [304.31+89.47-15.70-302.25]
= 75.83 KN.m

Problem 6 (3 pts) Refer to Hibbeler problem 3.20 for: Use 2.2 Mg, 1.3 Mg, 0.5 Mg, 7.9
m, 3.2 m, 7.6 m and 14.1 m instead of 2 Mg, 1.5 Mg, 0.5 Mg, 7.5 m, 4 m, 9.5 m and 12.5
m
π‘šπ‘šπΆπΆ = ________________
Solution
Counter weight at C,π‘šπ‘ is calc...

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