5.5 m2.5 mFigure P260 lbсВө12 in, A40 inPFigure P2.23Figure P2.242.24 Two forces of magnitude P each act on the beam. Determine the angle 0for which the combined moment of the forces about A is zero.2.25 A force P in the xy-plane acts on the triangular plate. The moments of Pabout points O, A, and B are Mo 350 N m clockwise, MA 0, and MB 0Determine P2.26 A force P in the xy-plane acts on the triangular plate. The moments of Pabout points O, A, and B are Mo 80 N m counterclockwise, MA 200 N mclockwise, and M 0. Determine PA500 mm12 in.5 in400 mmВFigure P2.25, P2.26Figure P2.272.27 Determine the moment of the force F 9i + 18j lb about point O byC

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Asked Oct 2, 2019
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2.26 how do the moment work in this problem. How can they be showed. Draw if possible.

5.5 m
2.5 m
Figure P2
60 lb
с
В
ө
12 in, A
40 in
P
Figure P2.23
Figure P2.24
2.24 Two forces of magnitude P each act on the beam. Determine the angle 0
for which the combined moment of the forces about A is zero.
2.25 A force P in the xy-plane acts on the triangular plate. The moments of P
about points O, A, and B are Mo 350 N m clockwise, MA 0, and MB 0
Determine P
2.26 A force P in the xy-plane acts on the triangular plate. The moments of P
about points O, A, and B are Mo 80 N m counterclockwise, MA 200 N m
clockwise, and M 0. Determine P
A
500 mm
12 in.
5 in
400 mm
В
Figure P2.25, P2.26
Figure P2.27
2.27 Determine the moment of the force F 9i + 18j lb about point O by
C
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5.5 m 2.5 m Figure P2 60 lb с В ө 12 in, A 40 in P Figure P2.23 Figure P2.24 2.24 Two forces of magnitude P each act on the beam. Determine the angle 0 for which the combined moment of the forces about A is zero. 2.25 A force P in the xy-plane acts on the triangular plate. The moments of P about points O, A, and B are Mo 350 N m clockwise, MA 0, and MB 0 Determine P 2.26 A force P in the xy-plane acts on the triangular plate. The moments of P about points O, A, and B are Mo 80 N m counterclockwise, MA 200 N m clockwise, and M 0. Determine P A 500 mm 12 in. 5 in 400 mm В Figure P2.25, P2.26 Figure P2.27 2.27 Determine the moment of the force F 9i + 18j lb about point O by C

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Expert Answer

Step 1

As mentioned in the question the value of the moment force P at point B is zero. This indicates that the force passes through the point B. Based on the fact consider the diagram shown in which the P is the force acting on the system and θ is the angle between the direction of force and x axis.

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Peino Scom 1 FO.SM PeorgA D 04M

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Step 2

The sign convention for the counter-clockwise direction for the moment is taken here as positive and clockwise as negative.

Write the expression for the moment of force P about the point O and substitute the respective values.

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Mo (Psin) (OB) 80 N m (Psin e)(0.4 m) Psine 200 N (1)

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Step 3

Similarly, write the expression for the moment of force P about the point ...

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Mo (Pcose)(OB) -200 N m (Pcos e)(0.5 m) (2) Pcose400 N

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