A 30.0-kg child sits on one end of a long uniform beam having a mass of 20.0 kg, and a 40.0-kg child sits on the other end. The beam balances when a fulcrum is placed below the beam a distance 1.10 m from the 30.0-kg child. How long is the beam? A) 2.07 m B) 2.12 m C) 1.93 m D) 2.20 m E) 1.98 m
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 30.0-kg child sits on one end of a long uniform beam having a mass of 20.0 kg, and a 40.0-kg
child sits on the other end. The beam balances when a fulcrum is placed below the beam a distance
1.10 m from the 30.0-kg child. How long is the beam?
A) 2.07 m B) 2.12 m C) 1.93 m D) 2.20 m E) 1.98 m
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