# Thread: Non-Concurrent Coplanar forces

1. ## Non-Concurrent Coplanar forces

Can anyone help to show me the method of how to find the answers of this question.

the books says the Answers are: A = 5.30 kN
B = 3.95 kN

any help is appreciated.

2. Originally Posted by wellthen
Can anyone help to show me the method of how to find the answers of this question.

the books says the Answers are: A = 5.30 kN
B = 3.95 kN

any help is appreciated.

$\sum \tau = 0$ about point B.

$2.5\cos(45) \cdot 6 = A \cdot 2$

$A = 7.5\cos(45) = 5.3$ kN

$\sum F_x = 0
$

$A = 2.5\cos(45) + B_x$

$B_x = A - 2.5\cos(45) = 3.54$ kN

$\sum F_y = 0
$

$B_y = 2.5\sin(45) = 1.77$ kN

$B = \sqrt{B_x^2 + B_y^2} = 3.95$ kN

3. thanks for the quick response ^_^

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### non concurrent coplanar forces h

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