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# Examples of Inertia in Motion

Inertia is the natural tendency of an object to resist any change in its motion, which means that it tends to stay at rest or in constant motion along a straight line.
Inertia is a quality of mass and in turn the mass of an object is actually a measurement of its inertia.

Bodies will have different inertia due to their difference of mass. An object with little mass with little inertia will have greater acceleration than an object with larger mass and larger amount of inertia and this will be in response to same net force acting on both.
As objects have inertia, they resist changing their motion and this leads to applying more forces to things going and change the velocity and ultimately change in acceleration.

The inertia of an object at rest is called static inertia and the one in motion is called dynamic inertia.
Since the inertia of motion is the inability of the body to change its state of motion by itself the examples would also show the same trend.

Some examples of inertia of motion are as follows:

(a)    A person trying to get down from a running bus falls forward.
Explanation: when the person gets down from a running bus the upper part of his body is still in motion and due to this inertia of motion the body topples forward even though he has set his foot on the ground.

(b)    Passengers travelling by train fall forward when the train applies sudden brake
Explanation:  due to inertia of motion the motion of all passengers is equal to the motion of the train and as soon as the brake is applied the passengers feet being in contact with the train floor stops while the upper part falls forward due to inertia of motion.

(c)    Ripe fruits fall from the trees in the direction of wind.
Explanation: the tree sways along with the wind and the inertia of motion makes these fruits sway along with the tree branches. The fruits fall off due to the inertia of motion along the direction of wind.

(d)    The swirling of milk in a glass continues even after the stirring is stopped.
Explanation: a person stirring a spoonful of sugar into a glass of milk finds the milk continuing the swirling movement even after the stirring is stopped and this happens due to the inertia of motion of the milk inside the glass.

(e)    A toy thrown up by a boy inside a moving train moves along with the train
Explanation: the toy also attains the same velocity as the train inside the train and thus would move along with the train when thrown up. This will apply only when the train is moving with a constant speed or it might fall forward or backward if the speed is altered.

From Wikipedia

Inertia - Wikipedia, the free encyclopedia

... of any physical object to a change in its state of motion or rest. ....constant speed and constant direction (and also includes the case of zero speed, ...

Question:Could someone give some real life examples of Newtons three laws of motion.? Thanks in advance

Answers:Inertia...car skids out of control on a curve and ends up in a corn field. F = ma...car of mass m accelerates down the freeway when the driver pushes the pedal to the floor. Balanced forces...you sitting in your chair as you read this answer.

Question:examples of 3 laws of motion

Answers:Newton first law of motion:every body continues to remain in its state of rest or uniform motion along a straight line unless it is compelled by external force to change that state. First law of newton is also called the law of inertia. ex : A person sitting in a vehicle at rest has his whole body at rest.when the vehicle suddenly starts moving forward,the lower part of in contact with the vehicle moves forward.But the upper part of the body continues too remain at rest due to inertia.As a result,the person has a tendency to fall back. Newton second law of motion:The acceleration given to a body is directly proportional to the force and inversely proportional to the mass and it takes place in the direction of force. ex : A force of 0.12N acts for 3 seconds on a body of mass 0.4 kg at rest.Find the velocity gained by the body. solution : F=0.12 N, m =0.4 kg and t = 3 s. using the equation F = ma, 0.12 = 0.41 therefore a = 0.12/0.4 = 0.3 meter per second square Initial velocity of the body U = 0 so final velocity of the body is given by v = u + at 0 + 0.3 * 3 = 0.9 meter per second square Third law of newton states that to every action there is any equal and opposite reaction. ex:When a body reaming at rest on a table.The body exerts a downward force on the table equal to its weight (action).The table in turn,exerts on the body an equal force in the opposite direction (reaction).

Question:I am looking for somewhat like an example where this law of motion is applied.. thanx.. 10 poitns here!!!!!!!!!!!!!!!!

Answers:Basketball is a great example for the law of motion. The law of inertia can be seen when you are doing a lay-up. As you are running up to the basket, your body is going a certain speed in motion. Once you jump for the lay-up your body (and the ball) want to continue in the direction you were running and at the speed you were running. That is why sometimes people go under/behind the board. Acceleration can be seen in the same example; as you move toward the basket, you steadily increase. Once you throw the ball, it will accelerate and decelerate according to how gravity, air resistance, and all other forces (like the net or backboard) act upon it.

Question:I am doing a science project . Is a girl riding a surf board considered to be Newtons first law of motion ? I have a science Project and isnt a girl riding a surfboard considered to be Newtons first law? & Newtons First law, isnt it An object will stay at rest unless another object will act upon it???

Answers:Theoretically, this is a scenario where the three Laws Of Newton can be applicable. Anyway, Newton's 1st Law is also known as the Law of Inertia and fora science project, I would suggest a very simple demonstration like so. Place a block (or any object) on a smooth table. Note that this block is not moving initially. If you apply an external force on it (in other words, push or pull it), the block will obviously move consistent with the direction of the applied force. If the external force is taken off (i.e., you stop pushing or pulling), the block will simply stop. Another way the block will stop is when something stops it from moving. It could be an impediment or simply anything that will prevent the block from moving. Hope this helps.