The forces F_1 = {-6i + 2j - 4k} kN and F_2 = {3i - 3j...

Question

Question

Answer 1

Answer #1

FR = F1 + F2

FR = -6i + 2j - 4k + 3i -3j - 2k

FR = -3i - j - 6k

(FR)x , (FR)y , (FR)z = -3 . -1 , -6 k N

=================

r1 = 4i -0.15j + 0.25 k

M1 = r1 x F1

M1 = 0.1i + 14.5 j + 7.1 k

r2 = 4i + 0.15j + 0.25 k

M2 = r2 x F2

M2 = 0.45 i + 8.75 j - 12.45 k

M = M1 + M2

M = 4.45i + 8.95 j - 12.2 k

(MR0)x , (MRo)y , (MRo)z = 4.45 , 8.95 , -12.2 kNm

Answer 2

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