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Why do you need a frame of reference to determine speed of an object?
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What is speed of a stationary object?
In the frame of reference in which the object is stationary, its speed is zero. (Actually, that's kind of a definition of "stationary".)
An object at rest has this velocity?
Velocity is defined as the rate of change of the position of an object in relation to the specification of its speed and direction of motion. Therefore, an object at rest will have zero velocity.
If zero mass particle have a speed c in one reference frame Can they be found at rest in other frame?
"c" is usually used, in this context, for the speed of light. If such a particle has the speed of light in one frame of reference, then, strange as it may seem, it will have the speed of light in ANY frame of reference.
What are some ways mass would increase an object?
If you accelerate it close to the speed of light it's mass increases in your frame of reference.
How can two different observers measure a different speed for the same object?
It depends on the observer's frame of reference. If both are stationary then an object's speed will be measured to be the same. If one or both are moving at unequal velocities, then the same object will appear to move at a different speed for each observer.
What is speed of a stationary object?
In the frame of reference in which the object is stationary, its speed is zero. (Actually, that's kind of a definition of "stationary".)
An object at rest has this velocity?
Velocity is defined as the rate of change of the position of an object in relation to the specification of its speed and direction of motion. Therefore, an object at rest will have zero velocity.
Unbalanced forces acting on an object produce motion?
The second law of Newton says that the sum of all the forces acting on an object is equal to the acceleration of this object, in a given frame of reference. If the sum of forces isn't equal to zero, therefore the acceleration isn't to. So the object has a speed and is in motion, in the frame of reference chosen.
If zero mass particle have a speed c in one reference frame Can they be found at rest in other frame?
"c" is usually used, in this context, for the speed of light. If such a particle has the speed of light in one frame of reference, then, strange as it may seem, it will have the speed of light in ANY frame of reference.
What are some ways mass would increase an object?
If you accelerate it close to the speed of light it's mass increases in your frame of reference.
When does speed occur?
Speed occurs when a body moves with respect to some frame of reference.
Why can't things go faster than the speed of light?
E=MC squared so C is the speed of light which means it would require an infinite amount of mass and energy.____________The above is correct if you are talking about an object in our inertial frame of reference. Such an object cannot accelerate to beyond the speed of light relative to you. But Einstein's theory does not prevent the existence of an object that is going faster than c. It is just that the object would not have started out in our inertial frame of reference.
How can two different observers measure a different speed for the same object?
It depends on the observer's frame of reference. If both are stationary then an object's speed will be measured to be the same. If one or both are moving at unequal velocities, then the same object will appear to move at a different speed for each observer.
What is synchronous reference frame?
It has been shown that the speed of rotation of the d.q axes can be arbitrary although there are three preferred speeds or reference frames as follows: (a) the stationary reference frame when the d,q axes do not rotate; (b) the synchronously rotating reference frame when the d,q axes rotate at synchronous speed; (c) the rotor reference frame when the d,q axes rotate at rotor speed.
To have momentum an object must be?
Momentum = m v (mass, velocity). If either one is zero, momentum is zero. So in order to have momentum, an object must have both mass and speed, in the frame of reference.
How do whe know that an object in moving?
First, it depends on your inertial reference frame. If I'm riding in a car holding a book in front of me, in my reference frame the book is stationary, but in the reference frame of a pedestrian the book is moving at the same velocity as the car.That having been said, an object has moved if its position has changed with respect to time. If we look at an object at two different times, t(1) and t(2), and the object was in two different places, p(1) and p(2), then the object moved at an average speed of [p(2) - p(1)] ÷ [t(2) - t(1)].
What does the theory of special relativity say about the equivalence of different frames of reference?
It says that the speed of light in a vacuum measured in any inertial frame of reference is equivalent to the speed of light in a vacuum measured in any other inertial frame of reference.
