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Results tagged with velocity
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user 74939
The time rate of change of the position of an object
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When is an object at rest?
An object moving in a circle has 0 overall velocity because the net displacement is 0, but the object still has speed because it's covering distance. … Also note that if you are talking about instantaneous velocity, then when this equals 0, the object is at rest.(relative to the observer) …
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Our speed and direction by comparing the speed of light?
It does not matter what your velocity is relative to a photon - the photon will always move at a fixed speed from your point of view. … You can then go ahead and derive the velocity addition formula. …