15. Rotational Equilibrium
Beam / Shelf Against a Wall
15. Rotational Equilibrium Beam / Shelf Against a Wall
9PRACTICE PROBLEM
A uniform horizontal sign post has a mass M and length L, and is fixed at one end to a vertical pole. A support cable, which makes an angle theta with the horizontal, stabilizes the sign post. A bird of mass m lands on the post, positioned a distance x from the pole. Determine the vertical and horizontal components of the force exerted by the sign post on its fixed point (pole) as a function of x .
A uniform horizontal sign post has a mass M and length L, and is fixed at one end to a vertical pole. A support cable, which makes an angle theta with the horizontal, stabilizes the sign post. A bird of mass m lands on the post, positioned a distance x from the pole. Determine the vertical and horizontal components of the force exerted by the sign post on its fixed point (pole) as a function of x .