
Understanding Zero Velocity and Non-Zero Acceleration: Explained
Aug 1, 2009 · 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 …
Phase and group velocity for the wave function - Physics Forums
Jul 20, 2025 · The discussion centers on the concepts of phase velocity and group velocity in wave functions, specifically in the context of quantum mechanics. The group velocity is defined as \ (v_g = …
Average Speed vs. Velocity: Explained - Physics Forums
Jul 9, 2021 · Investigate the relationship between speed, velocity, and acceleration in motion analysis Students of physics, mathematicians, and educators seeking a deeper understanding of motion …
Is velocity ever a scalar quantity? - Physics Forums
Dec 27, 2024 · 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...
Can you have a negative average velocity? • Physics Forums
Sep 3, 2012 · Negative average velocity is achievable in a multi-dimensional context, particularly when considering directional movement. For instance, if a vehicle travels north at 10 mph for one hour and …
How Long Does It Take a Person to Reach Terminal Velocity?
Apr 20, 2014 · I want to estimate how long it will take a person (I could specify their dimensions and density :P but maybe just take it as 170 cm tall, 80 kg, etc.) to fall a certain height in the gravitational …
Calculating Nozzle Flow Rate To work out the flow rate of water from a nozzle we need to work out the volume in a given period of time. To do this we work out the area of the nozzle and then multiply it by …
Difference between rotational and angular velocity
Sep 26, 2003 · The discussion clarifies the distinction between rotational velocity and angular velocity. Angular velocity is defined as the rate of change of angle over time, measured in radians per second, …
How to find angular velocity from torque? • Physics Forums
Sep 6, 2013 · To find angular velocity, the integration of angular acceleration over time is necessary, expressed as ω = ∫ (τ/I) dt, while considering the initial angular velocity. The conversation also …
Why Does Doubling Velocity Increase Kinetic Energy by Four Times?
Dec 16, 2004 · The discussion centers on the relationship between velocity and kinetic energy, specifically why doubling the velocity of an object results in a fourfold increase in kinetic energy. The …