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2007-05-10 18:36:47 · 31 answers · asked by som 1 in Science & Mathematics Physics

31 answers

IN common language, its the ''speed''.

2007-05-11 01:33:47 · answer #1 · answered by ๏๓ รђคภtเ, รђคภtเ รђคภtเ ....... ! 7 · 1 1

The velocity of an object is its speed in a particular direction. Velocity can also be defined as rate of change of displacement or just as the rate of displacement. It is a vector physical quantity with dimension LT(-1). In the SI (metric) system, it is measured in metres per second (m/s). The scalar absolute value (magnitude) of velocity is speed.

Since velocity is defined as a vector quantity, both speed and direction are required to define it. For example, "5 metres per second" is a speed and not a vector, whereas "5 metres per second east" is a vector. The average velocity (v) of an object moving a displacement (s) in a straight line during a time interval (t) is described by the formula:

v = s/t

2007-05-14 18:30:09 · answer #2 · answered by Anonymous · 1 0

The velocity of an object is its speed in a particular direction. Velocity can also be defined as rate of change of displacement or just as the rate of displacement. It is a vector physical quantity with dimension LT(-1). In the SI (metric) system, it is measured in metres per second (m/s). The scalar absolute value (magnitude) of velocity is speed.

Since velocity is defined as a vector quantity, both speed and direction are required to define it. For example, "5 metres per second" is a speed and not a vector, whereas "5 metres per second east" is a vector. The average velocity (v) of an object moving a displacement (s) in a straight line during a time interval (t) is described by the formula:


v=s/t

2007-05-10 23:43:30 · answer #3 · answered by Vishal 2 · 0 1

The velocity of an object is its speed in a particular direction. Velocity can also be defined as rate of change of displacement or just as the rate of displacement. It is a vector physical quantity with dimension LT(-1). In the SI (metric) system, it is measured in metres per second (m/s). The scalar absolute value (magnitude) of velocity is speed.

Since velocity is defined as a vector quantity, both speed and direction are required to define it. For example, "5 metres per second" is a speed and not a vector, whereas "5 metres per second east" is a vector. The average velocity (v) of an object moving a displacement (s) in a straight line during a time interval (t) is described by the formula:


v=s/t

2007-05-10 18:47:51 · answer #4 · answered by Newyork Lover 2 · 0 1

The velocity of an object is its speed in a particular direction. Velocity can also be defined as rate of change of displacement or just as the rate of displacement. It is a vector physical quantity with dimension LT(-1). In the SI (metric) system, it is measured in metres per second (m/s). The scalar absolute value (magnitude) of velocity is speed.

Since velocity is defined as a vector quantity, both speed and direction are required to define it. For example, "5 metres per second" is a speed and not a vector, whereas "5 metres per second east" is a vector. The average velocity (v) of an object moving a displacement (s) in a straight line during a time interval (t) is described by the formula: v = s / t

2007-05-10 18:47:04 · answer #5 · answered by Tubby 5 · 2 0

The velocity of an object is a vector quantity that describes its speed in a particular direction. Velocity can also be defined as rate of change of displacement or just as the rate of displacement. Velocity is the integral of acceletation.

2007-05-14 03:36:30 · answer #6 · answered by Wooly 4 · 0 1

Velocity (symbol: v) is a vector measurement of the rate and direction of motion. The scalar absolute value (magnitude) of velocity is speed. Velocity can also be defined as rate of change of displacement or just as the rate of displacement, depending on how the term displacement is used. It is thus a vector quantity with dimension length/time. In SI units this is metre per second

2007-05-10 20:00:57 · answer #7 · answered by indranath 3 · 0 1

The force acting on a unit area in a given direction is called velocity .

Velocity is actually like speed only it travels in a given direction while speed does not .

Velocity =
Distance traveled
--------------------------
Time taken

2007-05-10 20:51:12 · answer #8 · answered by Anonymous · 0 1

The velocity of an object is its speed in a particular direction. Velocity can also be defined as rate of change of displacement or just as the rate of displacement. It is a vector physical quantity with dimension LT(-1). In the SI (metric) system, it is measured in metres per second (m/s). The scalar absolute value (magnitude) of velocity is speed.

Since velocity is defined as a vector quantity, both speed and direction are required to define it. For example, "5 metres per second" is a speed and not a vector, whereas "5 metres per second east" is a vector. The average velocity (v) of an object moving a displacement (s) in a straight line during a time interval (t) is described by the formula:
. v=s/t

Polar coordinates
In polar coordinates, a two-dimensional velocity can be decomposed into a radial velocity, defined as the component of velocity away from or toward the origin (also known as velocity made good), and transverse velocity, the component of velocity along a circle centered at the origin, and equal to the distance to the origin times the angular velocity.

Angular momentum in scalar form is the distance to the origin times the transverse speed, or equivalently, the distance squared times the angular speed, with positive quantities representing counter-clockwise direction and negative quantities representing clockwise direction (in a right-handed coordinate system).

velocity = displacement (divided by) time

If forces are in the radial direction only with an inverse square dependence, as in the case of a gravitational orbit, angular momentum is constant, and transverse speed is inversely proportional to the distance, angular speed is inversely proportional to the distance squared, and the rate at which area is swept out is constant. These relations are known as Kepler's laws of planetary motion.

For more details refer to http://en.wikipedia.org/wiki/Velocity

2007-05-10 20:21:59 · answer #9 · answered by Anonymous · 1 0

The speed at which something is moving. Escape velocity of the space shuttle is around 17,000 miles per hour, for instance. Direction can be relevant to a particular problem, but not normally necessary to know. It is considered as in a straight line. Can be feet per second, MPH, KPH

2007-05-10 18:52:37 · answer #10 · answered by ideamanbmg 3 · 0 1

Velocity is the vector that defines the speed and direction of motion of an object. Mathematically, defined as the rate of change of distance from a reference point.

2007-05-10 19:57:04 · answer #11 · answered by Swamy 7 · 1 0

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