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Is pulling a contact force?
Yes, pulling is an example of a contact force because it requires physical contact between two objects in order to exert a force. When you pull an object, you are exerting a force through direct contact with that object.
What is the scalar product of the force action on an object and the displacement caused by that force?
Work is the scalar product of the force acting on an object and the displacement caused by that force. In order for work to be done, the object must be moved in the direction of the force.
What is the force required to lift an object equal to?
The force required to lift an object is equal to the weight of the object, which is the mass of the object multiplied by the acceleration due to gravity (F = m * g). The force must overcome the gravitational force acting on the object in order to lift it.
What must an object be contacted in order to make it move or stop?
An object must be subjected to a force in order to make it move or stop. This force can come from physical contact, such as pushing or pulling the object, or from non-contact forces like gravity or magnetism. The type and intensity of force applied determine the object's motion.
Is twist a contact force?
No, twist is not a contact force. Twist is a type of torque that is applied to an object in order to rotate it around an axis. It is a form of rotational force.
What is required to get a stationary object moving?
An outside force is needed. If friction comes into play (which it likely will), the magnitude of the applied force must be greater than the force of friction acting upon the object in order for the object to move. FYI, the force of friction is equal to the coefficient of static friction times the normal force (equal to the weight of the object).
What is an object that acts as if there no forces acting on it all?
Inert- in order for any object to do anything, there has to be a force of some kind acting upon it, whether it be kinetic, heat, light, electrical, chemical or any other type of energy. An object that has nothing acting upon it doesn't do anything, because it can't.
In order for an object not to move the forces on it must all be?
In order for an object not to move, the forces on it must be balanced. This means that the net force acting on the object is zero, resulting in no acceleration and thus no movement.
What do you need in order to have a Force greater than zero acting on an object?
To have a Force greater than zero acting on an object, you need an external force to be applied to the object. Without this external force, the net force on the object will be zero, which means it will remain at rest or continue to move at a constant velocity due to Newton's First Law of Motion.
What would the net force be on an object moving at constant velocity?
In order for an object to travel with constant velocity the sum of forces acting on it must be zero
What conditions must exist in order for a force to work on an object?
In order for a force to work on an object, there must be an interaction between the object and another object or system that exerts the force. This interaction requires contact or some form of field that allows the force to be transferred. Additionally, the force must have a direction and magnitude to produce a measurable effect on the object.
In order to move an object at rest you must make sure the forces acting on that object are what?
To move an object at rest, you must apply a force to overcome the force of static friction that is keeping the object stationary. Ensuring that the applied force is greater than the force of static friction will allow the object to start moving.
