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- Is velocity ever a scalar quantity? - Physics Forums
I thought velocity was always a vector quantity, one with both magnitude and direction When it came to the suvat equations, where v = final velocity, and
- Addition of Velocities (Velocity Composition) in Special Relativity
The “Addition of Velocities” formula (more correctly, the “Composition of Velocities” formula) in Special Relativity v A C c = v A B c + v B C c 1 + v A B c v B C c is a non-intuitive result that arises from a “hyperbolic-tangent of a sum”-identity in Minkowski spacetime geometry, with its use of hyperbolic trigonometry However, I claim it is difficult to obtain this by looking at
- Understanding Zero Velocity and Non-Zero Acceleration: Explained
I heard it would be possible to have zero velocity non zero acceleration (I know the opposite situation where there is velocity (constant), but zero acceleration) Could anyone please give me a clue on this? Thanks in advance
- Can you have a negative average velocity? • Physics Forums
I understand that it's possible to have a negative instantaneous velocity, but I'm wondering if it's possible to have an negative average velocity For example, let's say you start heading north at a constant 10 mph for an hour The second hour, you drive south (directly toward the starting
- Relationship between viscosity and velocity in fluid mechanics
hello, I read in a lecture paper about fluid mechanics that velocity is not related to viscosity, i found this odd and i think it is an error , can someone
- Difference between angular velocity and angular frequency
I have seen so many questions and confusion about the difference between angular velocity speed and angular frequency Usually, answers were always given in the context of uniform circular motion (angular speed) and simple harmonic oscillation (angular frequency), but this is what causes the
- Numerade
Confusing speed with velocity, neglecting the directional component of velocity Overlooking that deceleration is still a form of acceleration (negative acceleration) Failing to correctly apply the vector nature of velocity and acceleration in problem-solving
- At What Velocity Does the Universe Expand and Can It Be Faster than Light?
You may sometimes see statements that cosmological inflation caused the universe to expand faster than c, or that the edge of the observable universe occurs at the place where the Hubble law gives a velocity equal to c The first statement is incorrect because the expansion of the universe can’t be measured with a single velocity
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