###### Asked in PhysicsElectrical EngineeringThe Difference Between

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# What is your current velocity?

## Answer

###### Wiki User

###### July 06, 2017 3:51PM

It is pretty close to 0. I am sitting at a desk. However, I am also sitting on the planet earth which is revolving on its axis as well as rotating around the sun (approximately); the sun is rotating along with our arm of the Milky Way Galaxy, the Milky Way Galaxy is moving through space towards the Andromeda Galaxy and our local cluster is headed towards ... . My head starts spinning when I think of all the calculations required. Besides, what fixed frame of reference can I use to measure all these movements?

## Related Questions

###### Asked in Physics

### What does acceleration do to velocity?

Acceleration increases the velocity.
There are two physics formulas that you can use to see more how
they interact. The first is a formula for determining your current
velocity at a given moment t, knowing your initial velocity and
your current acceleration.
v = v0 + at
(v0 is v-naught. The zero is usually written as a
subscript.)
You can solve this equation for a to get a formula for
acceleration as well.
a = (v-v0)/t
So, basically, at any given interval t, the acceleration has
been added onto the current velocity that many times.

###### Asked in Physics

### Is electric current a wave?

###### Asked in Physics

### What is the effect on the drift velocity of free electrons by decreasing the length and the temperature of wire?

As we know , resistance(R) is directly proportional to length(L)
of conductor and resistence(R) is inversely proportional to current
(I) and
I=nAqv (v is drift velocity)
So , if we decrease the length of the conductor , resistance of
the conductor will decrease and current(I) will increase and drift
velocity of free electrons will increase .
And as we know resistance and temperature have direct relation
so , by decreasing the temperature resistence will decrease and
current will increase . So drift velocity will increase .

###### Asked in Math and Arithmetic

### A motorboat takes 5 hours to travel 300 km going upstream The return trip takes 2 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?

Velocity = Distance ÷ Time.
The speed upstream = 300 ÷ 5 = 60kph.
The speed downstream = 300 ÷ 2 = 150 kph.
The speed upstream equals boat velocity(Vb) minus current
velocity(Vc).
The speed downstream equals boat velocity (Vb) plus
current velocity (Vc).
Vb - Vc = 60
Vb + Vc = 150 : Adding the two equations together gives :-
2Vb = 210 : Vb = 105, therefore Vc = 45
The rate of the boat in still water is 105 kph. The rate of
the current is 45 kph.

###### Asked in Physics

### Why use velocity?

###### Asked in Electronics Engineering, Physics

### When an electric current flows through a long conductor how does each free electron moves?

The individual electrons will move back and forth, as they do
when there is no current. You would have to do very careful
statistics to notice that there are slightly more electrons moving
in one direction than in the other: the drift velocity (average
velocity due to current) of the electrons is typically a fraction
of a millimeter per second.

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