is attached to the ground via a hinge at point C, as shown in the figure. The ot

Question

is attached to the ground via a hinge at point C, as shown in the figure. The other end o friction is present on all at point B is free to move against the vertical wall and is resting against it. surfaces (i.e. floor and vertical wall) a) Select all forces acting on the board at point A gravity force normal force tension force friction force reaction force Point B Point A (centcr-of-beam) b) Select all forces acting on the board at point B gravity force normal force tension force friction force linge Point C reaction force c) Select all forces acting on the board at point C gravity force normal force tension force

Explanation / Answer

(a) Only Gravity force is present as weight is concentrated here and there is no other contact.

Correct options : gravity force

(b) As rod pushes the wall, normal force is present.

As this edge is free to move, friction force is present.

These are correct options

(c) this point has normal force and gravity force.

No friction as it is not free end

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