Rotational Equilibrium And Rotational Dynamics
In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.
Equilibrium of Forces
The tension created on one body during push or pull is known as force.
A seesaw consisting of a uniform board of mass M and length ℓ supports
at rest a father and daughter with masses mf and md, respectively, as shown. The support (called the fulcrum) is under the center of gravity of the board, the father is a distance d from the center, and the daughter is a distance ℓ/2 from the center. (A) Determine the magnitude of the upward force n→ exerted by the support on the board.
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