'Force'.
Remember Newton's three laws of Universal Dynamics.
A body/mass will stationary or in uniform motion unless acted upton by a force.
Force is directly proportional to mass and acceleration
To every force there is an equal and opposite force.
It depends if any net (external) forces act on the object. If there are forces acting on the object, it will accelerate (change its motion) depending on the direction of the applied force.
The centre of gravity does not, by itself, determine whether an object is at rest or in motion. The location of the centre of gravity, relative to where the object is supported, can contribute one of many forces that can act on the object. And it is is the [vector] sum of these forces which determines whether the object remains at rest or in uniform motion.
The total vector force on an object determines the change in its velocity. That change is also known as acceleration.
Acceleration
Balanced forces do not change an object's motion.
it usually does, but if the force is balanced, it will not change the object's motion
The extent of resistance to a change of motion is determined by an objects mass. The mass of the object is measured in kilograms.
The centre of gravity does not, by itself, determine whether an object is at rest or in motion. The location of the centre of gravity, relative to where the object is supported, can contribute one of many forces that can act on the object. And it is is the [vector] sum of these forces which determines whether the object remains at rest or in uniform motion.
motion of the particles
The total vector force on an object determines the change in its velocity. That change is also known as acceleration.
Velocity is a change in an object's motion OR direction of motion.
The change in an objects position is called motion.
Acceleration
Balanced forces do not change an object's motion.
Objects in motion continuously change position.To change direction, a force needs to act upon them.
uniform motion
it usually does, but if the force is balanced, it will not change the object's motion
unbalanced force(: