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when can you say that the object is in motion
say your already in uniform motion, if you push or pull against the direction of motion it will decelerate to zero , then accelerate in the opposite direction. if you push or pull in the direction of motion, it will accelerate
You would say that the object in motion is accelerating. Or you can say that the object's velocity is increasing.
I can say that a force is the ONLY thing that can accelerate an object.
The object is moving at a constant speed.
It means that the object is moving.
Friction.Called inertia. To accelerate a body the force is mass times acceleration. No force = no acceleration. People say " the force is opposed by the massacceleration"
It means that the object is moving.
An object in motion will stay in motion, at a constant velocity. This assumes that no net force acts on the object. This is known as Newton's First Law.
That is true. According to Newton's first law of motion: "An object at rest tends to stay at rest, of if it is in motion tends to stay in motion with the same speed and in the same direction unless acted upon by a sum of physical forces." So if I'm pushing in one direction with 5 Newtons of force, and you are pushing in the opposite direction with 3 Newtons of force, the object will begin to accelerate towards you. This is also assuming that we either void the static friction, or we are on a frictionless surface.
when it change in position or in place
i would say if the object were to collide with something like a car into a tree im not sure if this answer is completely right but that's what i would say