define velocity?

Question

physics

Answer 1

v=d/t

Answer 2

as everybody knows, v=s/t

velocity is a vector. it's a vector, so it has a value and direction.

so, a body in a movement contains energy - inner energy, kinetic nrg. so velocity would actually be work of a body's energy with a consequence - moving. as the body moves, it moves by some speed. and to have speed, a body must cover some path in some designated time (v=s/t).

I pulled out this "theory" out from my brain, so I don't know how much you can rely on it since even i don't know if it's correct... but... that's just my brain between 6.5 billion other brains... I'm not a copycat gimme 10 points

Answer 3

The change in position (s) over time. In shorthand v = ds/dt; where ds is the change in position, dt is the change in time, and v is velocity. But, as others have said, velocity v is a vector; so it has both magnitude and direction. Let's see what that means.

In Cartesian coordinates (x,y,z), s = sqrt(w^2 + z^2), where w^2 = x^2 + y^2. Each of these coordinates can be written as magnitude and direction. For example, x = w cos(theta) and y = w sin(theta); also z = s sin(phi) and the angles theta and phi provide the directional information. Thus a change in magnitude (x,y,z) or direction (theta,phi) over time (dt) will change s and a velocity (ds/dt) is the effect.

Answer 4

as everybody knows, v=s/t

velocity is a vector. it's a vector, so it has a value and direction.

so, a body in a movement contains energy - inner energy, kinetic nrg. so velocity would actually be work of a body's energy with a consequence - moving. as the body moves, it moves by some speed. and to have speed, a body must cover some path in some designated time (v=s/t).

I pulled out this "theory" out from my brain, so I don't know how much you can rely on it since even i don't know if it's correct... but... that's just my brain between 6.5 billion other brains...

Answer 5

Velocity is the measurement of a mass moving from point "A" to point "B". Generally, it is expressed in a format pertaining to a speed quotient, (mph, fps, cm/sec, light years), but the basic principle is, a measurement of the time that elapsed between point "A" and point "B". Regardless to the format that you express the movement in, the time it takes to travel is the velocity. So velocity is time.

Answer 6

Velocity is a vector having a speed AND a direction.

Answer 7

Velocity is speed and direction...He went East, at about 200mph for example.

Answer 8

the speed of something in a given direction

Answer 9

for lack of better explanation...the derivative of displacement or the integral of acceleration.