If it isn't moving, it is already in equilibrium, and you don't need to do anything more.
When an object is in equilibrium, the acceleration is zero. When the acceleration is zero, the velocity does not change; the non changing velocity includes the case when the velocity has value zero.
When the sum of the net forces on an object are not zero, it means that the object is being moved/pushed/pulled. It means that the object is not in equilibrium. If the net forces were zero, then the object would be in equilibrium, or, a state of not moving at all.
A body is refered to be in equilibrium when the forces acting on it cancel each other out, that is, the body has no resultant force. because F=ma , it can also be stated that a body is in equilibrium when there is no acceleration or deceleration in any direction. Therefore, if a body is moving at a steady speed, although it IS moving, it is still at equilibrium. We normally do not think of a moving object as one in equilibrium but that is because in an actual situation, air drag would cause an object to be in equilibrium with 0 velocity.
The object would not cease moving, as there is no friction to act like a brake.
A price ceiling is binding when it is below the equilibrium price. It is the legal maximum price, so the market wants to reach equilibrium (which is above that) but can't legally. If it were above the equilibrium price it would not be binding because the market would reach equilibrium and the ceiling would have no effect. A price floor is binding when it is above the equilibrium price. You can use similar reasoning to that above. It is the legal minimum price. the market wants to reach equilibrium below that but can't legally.
The object would be moving.
0. An object in equilibrium has constant velocity, which makes its acceleration 0. Since net force=mass times acceleration, this would make the net force zero. Note that there could be multiple forces acting on the object, but since it is in equilibrium they would have to be equal and opposite in direction, to cancel all of the forces out. This would make the net force zero.
A spring has maximum potential energy at maximum displacement from equilibrium. This means that the greatest potential energy will occur when a spring is stretched as far as it will stretch or compressed as tightly as it will compress. In an oscillating system, where an object attached to a spring is moving back and forth at a given frequency, the object will oscillate about the equilibrium point, and the potential energy of the system will be greatest (and equal) when the object is farthest from equilibrium on either side.
If you doubled the force on a moving object you would double its acceleration.
No
If there are any forces acting on a stationary object, then they must be balanced, or it would no longer remain stationary.It is also possible that the object is already moving. In the forces are balanced on a moving object, the object would continue moving at the same speed and direction (velocity) that it already had.
Weight.