6. Intro to Forces (Dynamics)

Which of the following objects is in static equilibrium?

An extended object is in static equilibrium if which of the following conditions are satisfied?

Which of the following best describes the condition when the forces acting on a water tube are balanced in two dimensions?

Two objects with masses $m_1$ and $m_2$ are balanced on a massless beam of length $L$ that pivots at a point a distance $d$ from $m_1$. If the system is in equilibrium, what is the value of $d$?

In a two-dimensional system of forces acting on a rigid body, under which condition will the net current through the battery be nearly zero?

In the context of equilibrium in $2D$, what type of balance occurs when a weight is positioned at unequal distances from the center axis, causing the moments on either side to be different?

When all $F$ acting on an object in two dimensions are balanced, what state is the object in?

In the context of equilibrium in $2D$, in which of the following conditions does the car not accelerate?

A horizontal beam weighing $190N$ has its center of gravity at its midpoint. If the beam is supported at both ends and is in static equilibrium, what is the magnitude of the upward force exerted by each support?

A uniform horizontal beam is in static equilibrium and supported at two points. If the flexural rigidity $EI$ is constant along the length of the beam, which of the following statements about the internal bending moment at the midpoint of the beam is correct?

Which term best describes the forces acting on an object when the net force is $0$?

When balanced forces act on an object that is at rest, what will happen to the object?

Under what condition are the four forces acting on an airplane (lift, weight, thrust, and drag) in equilibrium?

In the context of equilibrium in 2D, which of the following best describes the condition for an object to be in a state of balance or motionless?

In a two-dimensional equilibrium problem, if the walls are fixed to the ground, what type of reaction force can the walls exert on an object in contact with them?