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All vector quantities, and many scalar ones too, depend on the frame of reference.
There is no such thing as "real" speed or "real" direction of motion ... only speed
and direction compared to the motion of the person measuring them.
Example:
A person is sitting in a comfortable seat, with a book in his lap. Since the book is not
moving, he's able to read the book, and even drift off and nap for a few minutes.
But the person is actually sitting in Row-14, Seat-B of a transcontinental jet flight.
A person on the ground who watches the aircraft fly over him sees the book move
by at 350 miles per hour ... too fast for him to make out any of the words in it.
What else can I help you with?
When is velocity negative in a moving object?
Velocity is negative in a moving object when the object is moving in the opposite direction of its positive reference point.
What 3 thing do you need to know to determine velocity?
To determine velocity, you need to know the object's speed (how fast it is moving), the direction in which it is moving (velocity is a vector quantity with magnitude and direction), and the reference point or frame of reference from which the velocity is being measured.
How does the velocity of an object change when observed from a moving frame of reference?
When an object is observed from a moving frame of reference, its velocity may appear different due to the relative motion between the observer and the object. This change in velocity is known as relative velocity, and it can be calculated by considering the velocities of both the object and the observer.
Does the trajectory of a moving point depend on the chosen reference?
No, the trajectory of a moving point does not depend on the chosen reference frame. The trajectory is a physical path that the point follows through space, and it remains the same regardless of the reference frame used to analyze it.
What is the Velocity of a toothpick?
The velocity of a toothpick would depend on how fast it is moving. If it is stationary, its velocity would be 0 m/s. If it is moving, its velocity would be the rate of change of its position over time, measured in meters per second.
When is velocity negative in a moving object?
Velocity is negative in a moving object when the object is moving in the opposite direction of its positive reference point.
What 3 thing do you need to know to determine velocity?
To determine velocity, you need to know the object's speed (how fast it is moving), the direction in which it is moving (velocity is a vector quantity with magnitude and direction), and the reference point or frame of reference from which the velocity is being measured.
Does a moving object's distance depend on the object's mass and velocity?
The distance doesn't depend on the mass.
How does the velocity of an object change when observed from a moving frame of reference?
When an object is observed from a moving frame of reference, its velocity may appear different due to the relative motion between the observer and the object. This change in velocity is known as relative velocity, and it can be calculated by considering the velocities of both the object and the observer.
Does the trajectory of a moving point depend on the chosen reference?
No, the trajectory of a moving point does not depend on the chosen reference frame. The trajectory is a physical path that the point follows through space, and it remains the same regardless of the reference frame used to analyze it.
What is the Velocity of a toothpick?
The velocity of a toothpick would depend on how fast it is moving. If it is stationary, its velocity would be 0 m/s. If it is moving, its velocity would be the rate of change of its position over time, measured in meters per second.
What does a moving object have that depends on it's mass and velocity called?
Both momentum and kinetic energy depend on mass and velocity.
If a bird hovers inside a train whilst that train is moving then presumably it is travelling at the same speed as the train Why is this and why is it not thown to the back of a carriage?
What pushes us back is a change in velocity (i.e., an acceleration), not the velocity itself. You might as well say that the train is stationary, and that planet Earth is moving under the train. In outer space, there is no fixed reference point; and it doesn't make sense to speak of the "real" velocity. A velocity must always be indicated with relationship to some reference point. Using the Earth as a reference point is convenient, but it isn't the only option.What pushes us back is a change in velocity (i.e., an acceleration), not the velocity itself. You might as well say that the train is stationary, and that planet Earth is moving under the train. In outer space, there is no fixed reference point; and it doesn't make sense to speak of the "real" velocity. A velocity must always be indicated with relationship to some reference point. Using the Earth as a reference point is convenient, but it isn't the only option.What pushes us back is a change in velocity (i.e., an acceleration), not the velocity itself. You might as well say that the train is stationary, and that planet Earth is moving under the train. In outer space, there is no fixed reference point; and it doesn't make sense to speak of the "real" velocity. A velocity must always be indicated with relationship to some reference point. Using the Earth as a reference point is convenient, but it isn't the only option.What pushes us back is a change in velocity (i.e., an acceleration), not the velocity itself. You might as well say that the train is stationary, and that planet Earth is moving under the train. In outer space, there is no fixed reference point; and it doesn't make sense to speak of the "real" velocity. A velocity must always be indicated with relationship to some reference point. Using the Earth as a reference point is convenient, but it isn't the only option.
When an object is moving it shows that?
When an object is moving, it demonstrates a change in its position with respect to a reference point over time. This change in position can be observed through its displacement, velocity, and acceleration relative to the reference point.
Is the trajectory of a moving point does not depend on the chosen reference?
Yes it is.
What is the velocity of a car traveling backwards?
The velocity of a car traveling backwards would be negative, as it is moving in the opposite direction of its positive reference point.
How can one determine the direction of velocity?
The direction of velocity can be determined by looking at the motion of an object in relation to a reference point. Velocity is a vector quantity that includes both speed and direction. The direction of velocity is indicated by the direction in which an object is moving, whether it is moving forward, backward, left, right, up, or down.
