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...

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 …

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 …

Jul 20, 2025 · As far as I know, if we have a wave function as a sum of many momentum eigen function, i.e., ##\\psi=\\sum_k \\alpha_k e^{i(kx-\\omega t)}##, the group velocity is the velocity …

Jul 9, 2021 · Though average speed over a finite interval of time is greater or equal to the magnitude of the average velocity, Instantaneous speed at an instant is equal to the …

Sep 3, 2012 · 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 …

Feb 13, 2017 · Homework Statement When an object is moving in a vertical circle attached to a string, it can withhold a maximum tension at the bottom of it's path. Derive an expression for …

Aug 8, 2018 · 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 …

Aug 9, 2021 · The initial velocity of this ball is at the moment is resting at the table and it is therefore zero, however for the purpose of the problem we consider as "initial" velocity the final …

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 …