State newton's 1st law of motion ? why is it known as the law of inertia
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Newton's first law of motion is often stated as
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
As Newtons first law explains, objects prefer to maintain their current state of motion. Unless a net force is present, the objects motion would never be changed.
To accelerate an object at an given rate requires a certain amount of force to be applied.
Inertia is an objects ability to resist a change in motion, so it is what determines the magnitude of force needed to accelerate an object at a given rate.
The more inertia an object has, the easier it is for it to stay in its current state of motion. So it is the reason objects in motion stay in motion and objects at rest stay at rest.
Now inertia becomes a useful quality when we consider Newtons 2nd law. Using F=maF=ma we use inertia to determine mass.
Inertia resists force until its overwhelmed, at which point acceleration occurs. So when we apply a known force to an object then measure the rate of acceleration we can then determine mass using m=Fam=Fa.
So mass directly relates to inertia. When one is mention the other is implied. Mass and inertia are synonymous.
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
As Newtons first law explains, objects prefer to maintain their current state of motion. Unless a net force is present, the objects motion would never be changed.
To accelerate an object at an given rate requires a certain amount of force to be applied.
Inertia is an objects ability to resist a change in motion, so it is what determines the magnitude of force needed to accelerate an object at a given rate.
The more inertia an object has, the easier it is for it to stay in its current state of motion. So it is the reason objects in motion stay in motion and objects at rest stay at rest.
Now inertia becomes a useful quality when we consider Newtons 2nd law. Using F=maF=ma we use inertia to determine mass.
Inertia resists force until its overwhelmed, at which point acceleration occurs. So when we apply a known force to an object then measure the rate of acceleration we can then determine mass using m=Fam=Fa.
So mass directly relates to inertia. When one is mention the other is implied. Mass and inertia are synonymous.
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》》If an object is in a state of motion then it will be continue in its motion and if the object is in rest then it will be remain at rest.
>>It is also known as the law of inertia bcz we know that it's a property due to which an object resist a change in its uniform motion or of rest which as same as applied in 1st law of motion,
Hence we can say that 1st law of motion is also known as the law of inertia.
>>It is also known as the law of inertia bcz we know that it's a property due to which an object resist a change in its uniform motion or of rest which as same as applied in 1st law of motion,
Hence we can say that 1st law of motion is also known as the law of inertia.
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