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Answered 2007-05-30 17:23:22

Speed descibes the rate of motion of an object. Velocity describes rate of motion (speed) of an objectin a specific direction. For example - the car's speed was 60mph, the car's velocity was west at 60mph.

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Does velocity depends on both speed and direction?

Yes. Velocity depends on both speed and direction.


Why is velocity a vector quantity?

Velocity refers to both speed and direction. A vector refers to both magnitude (the speed in this case) and a direction. Speed without reference to a direction is a scalar, a magnitude without direction.


Which term can describe both the speed and direction of an objects motion?

Velocity describes both the speed and direction an object is moving.


How can acceleration change the magnitude and direction of the velocity?

Velocity is speed in some direction. Acceleration changes that speed or that direction (or both).


How is acceleration related to speed and velocity?

Velocity is the combination of speed and its direction.Any change of speed, or direction, or both, is acceleration.


What includes both the speed of an the direction it is moving?

A Vector quantity accounts for both magnitude and direction.


Includes both the speed of an object and the direction its moving?

Velocity describes the speed and direction of travel of an object.


What would describe both speed and direction of a moving object?

Velocity= The speed and the direction in which an object is travelling in


What quantity gives both the speed and direction of an object?

Velocity gives both speed and direction of an object. While speed is a scalar quantity, velocity is a vector quantity and require direction or bearing in order to be valid.


When speed changes does its velocity change?

Yes. Velocity is both speed and direction. If either the speed or direction change, the velocity changes.


Both speed and acceleration include the direction of an objects motion true or false?

This is not true. Acceleration includes direction, but speed does not. Speed in a particular direction is called velocity.


Velocity is a measure of both an objects speed and its?

Direction. Velocity is a vector measure combining a magnitude (speed) and a direction.


What is speed in a known direction?

Speed in a known direction is called velocity. Velocity can have both positive and negative values


How does gravity and friction affect the speed and direction of an object?

the more of both and the less speed and the less of both the faster the speed


Does velocity describes the speed and direction of an object?

Velocity only describes the speed. Vector describes both speed and direction. That entails trigonometry.


Are not vector direction?

A VECTOR has both direction and magnitude.If a measurement has only direction, is just the direction.If it has magnitude (usually distance or force) but NO direction, it is described as SCALAR.For example, consider a ship cruising across the ocean.Case a) If its speed is 20knots, then we have only its speed, and speed is scalar.Case b) If it is moving at 20kt due Eastwards, then its course is a vector, by specifying both its speed and its direction.Strictly speaking, in Case a) we are right to say "speed" but in Case b), we can say "velocity" because velocity is the vector of speed and direction.So, a vector is not direction alone, but is direction with speed or force: you need to quote the values of both.


Is velocity a speed in a given direction?

Yes , speed in a given direction is called velocity. Velocity is a vector quantity that is it has both magnitude as well as direction.


Does velocity describe both speed and time?

NO Velocity measures speed and direction


Do velocity describe both speed and time?

No. Velocity states both speed and direction.Time gets involved in calculating the speed.


A change in speed andor direction is called?

Acceleration is any change in velocity. Velocity is the measurement of both speed and direction.


What do you need to describe the velocity of an object?

Velocity is a vector. You need both speed and direction


Why does a change of speed produce a change in direction?

It doesn't. For example, you can go in a straight line, and speed up or slow down, without changing direction. And if there is both a change in direction and a change in speed, the change of speed wouldn't be the CAUSE for a change in direction. (On the other hand, both can be caused by a force applied to an object.)


Is speed velocity in a given direction?

No , infact speed in a given direction is called velocity. Velocity is a vector quantity that is it has both magnitude as well as direction while speed is a scalar quantity.


What is accerlation?

Change of speed or direction or both of an object.



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