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Vertical circular motion minimum speed proof - Physics Forums so the body reached the top let's take what happened so far, in reverse now the body has velocity of (rg)^0 5 to the other side, mg is still downward we KNOW the body will complete the half circle reversed motion, because we've just seen it complete it
Is velocity ever a scalar quantity? | Page 2 - 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 u = initial velocity, I thought both of those were vector quantities, e g; v (final velocity) 112km hr North
Calculating Nozzle Flow Rate - Physics Forums for measuring velocity of water so we have to calculate velocity using head calculation or from stagnation pressure which we measure using a pitot tube Calculate Velocity from Head We can use Bernoulli's Equation to calculate velocity of a fluid from head Head is the distance from outlet to top of water V= 2gh V = Velocity m sec or feet per sec
Relation Between Spring Constant and Angular Velocity - Physics Forums ω = angular velocity in rad s 2⋅π corresponds to one full rotation (2⋅π rad = 360°) If you want to know how many rotations are made in one second, you calculate ω (2⋅π) = f with f = frequency in s-1 Now you calculated how many rotations per second correspond to your ω
How to find angular velocity from torque? - Physics Forums You can calculate the amount of torque required to accelerate the object, say from rest to a certain angular velocity Your question is a bit unclear If you want to determine what the angular velocity of a rotating object, that can be accomplished by using a stroboscope or timing light
How Is the Formula v=wr Derived in Vector Terms? - Physics Forums The angular velocity ω is usually a scalar, rather than a vector quantity The magnitude of the radial velocity is given as v = ω r, where r is the magnitude of the radius vector For a derivation of the radial velocity vector, see this article:
Exit velocity of a gas through a hole - Physics Forums The exit velocity is determined by the pressure difference between the tank and the environment and also the frictional forces both internal to the fluid and between the fluid and the orifice sides Ignoring frictional forces and assuming a constant pressure, the exit velocity of a fluid is always the same no matter how big the orifice diameter is
Demystifying the Often Misunderstood Bernoullis Equation - Physics Forums As a sanity check, we can perform a thought experiment based on a force balance (momentum conservation) If the velocity increases from point 1 to point 2, then that acceleration must be the result of a force in the same direction Bernoulli’s equation tells us that the velocity increase corresponds to a decrease in pressure
How Do You Calculate Closing Velocities and Determine Their Range? If I'm not mistaken, the closing velocity is the velocity that the planes get closer to each other And the closing speed is its magnitude, that is, the rate of change of the distance between the airplanes If the planes are at positions $\mathbf p_1$ and $\mathbf p_2$ and have velocities $\mathbf v_1$ and $\mathbf v_2$, then the closing
Random Seed Choice for LAMMPS Molecular Dynamics Simulations I want to create multiple molecular dynamics simulations using LAMMPS which are different only in the initial velocity of the atoms LAMMPS allows you to use a random seed to generate an initial velocity I plan to just use successive numbers, so if there are 5 simulations, the seeds would be 1,2,3,4, and 5