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 u = initial velocity, I thought both of those were vector quantities, e.g; v (final velocity) 112km/hr North

Nov 21, 2009 · 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...

Nov 17, 2015 · 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.

Sep 6, 2013 · 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 …

Dec 3, 2018 · 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.

Jan 24, 2016 · 1. The velocity has two components, the radial velocity and the tangential velocity. Call these ##V_r## and ##V_{\theta}##. These are at right angles. In terms of those two variables, what is the overall speed? (You already got this in post #11.) 2. What are you told the overall speed is? 3. What equation can you write down from the answers to ...

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

Feb 11, 2008 · The object flying through air must remove air in front of it. If you assume that the change of air velocity is proportional to the speed of the object, then the change of momentum of air (pushed away in a certain time) is proportional to v^2 (because the mass current is also proportional to v).

Sep 25, 2008 · Homework Statement A car enters a turn whose radius is R. The road is banked at angle Theta, and the friction coefficient is mu. Find the max and min speeds for the car to stay on the road without skidding sideways. Homework Equations W = mg N = -W Friction force = f …

May 15, 2021 · The problem-statement is incomplete. Presumably this is a simple 'velocity selector' (Wien filter) with ##\vec v, \vec E## and ##\vec B## mutually perpendicular. In this case you require ##\vec v## to be unchanged by the selector. This means ##\vec F## and ##\vec a## must both be zero.