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Q: Is it true that for velocity you must have a number a unit and a direction?
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An object in circular motion is constantly acceleratingtrue or false?

True. It is accelerating because the velocity constantly changes. The velocity constantly changes because the direction changes - and a velocity is made up of a magnitude, and a direction.True. It is accelerating because the velocity constantly changes. The velocity constantly changes because the direction changes - and a velocity is made up of a magnitude, and a direction.True. It is accelerating because the velocity constantly changes. The velocity constantly changes because the direction changes - and a velocity is made up of a magnitude, and a direction.True. It is accelerating because the velocity constantly changes. The velocity constantly changes because the direction changes - and a velocity is made up of a magnitude, and a direction.


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.


Is speed is a derived quantity?

Velocity is a derived quantity. Speed is velocity without direction. Velocity is derived from distance and time.


Is it true that Velocity is the speed of the wave?

In common language, the terms "velocity" and "speed" are used interchangeably. In physics, "velocity" is a vector, and "speed" is not - meaning that when the word "velocity" is used, it specifies not just how fast something moves, but also in what direction.


If an object has zero acceleration what two things could be true about its velocity?

The velocity does not change direction or magnitude. The object 1) may not be moving, or it 2) may be moving at a constant velocity. In the case of the latter, that means it's moving in the same direction and at a constant speed.

Related questions

Is velocity a vector?

True ,velocity is a vector quantity ,it is specified by a magnitude and direction.


Is it true When dividing by a negative number the direction of the inequality symbol MUST be reversed?

Yes, it is true.


An object in circular motion is constantly acceleratingtrue or false?

True. It is accelerating because the velocity constantly changes. The velocity constantly changes because the direction changes - and a velocity is made up of a magnitude, and a direction.True. It is accelerating because the velocity constantly changes. The velocity constantly changes because the direction changes - and a velocity is made up of a magnitude, and a direction.True. It is accelerating because the velocity constantly changes. The velocity constantly changes because the direction changes - and a velocity is made up of a magnitude, and a direction.True. It is accelerating because the velocity constantly changes. The velocity constantly changes because the direction changes - and a velocity is made up of a magnitude, and a direction.


Is true that absolute value of speed equals velocity?

No, you've got it backwards. The absolute value of velocity equals speed. Velocity is speed with a direction; speed is just a number, without regard to direction.


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.


What is true when the velocity and the acceleration of an object are in the same direction?

In that case, the object speeds up.


Which is a true statement about an object traveling uniform motion A. The speed of the object varies. B. The direction of the object's velocity is constant. C. The net force on the object is d?

B. The direction of the object's velocity is constant.


Is speed is a derived quantity?

Velocity is a derived quantity. Speed is velocity without direction. Velocity is derived from distance and time.


Is it true that Velocity is the speed of the wave?

In common language, the terms "velocity" and "speed" are used interchangeably. In physics, "velocity" is a vector, and "speed" is not - meaning that when the word "velocity" is used, it specifies not just how fast something moves, but also in what direction.


How are speed ande velocity similar?

Velocity has a magnitude which is it's speed, but speed does not have a direction like velocity. Velocity and speed both have a speed. The direction is designated by a vector. The speed of light is a speed it is a scalar, a velocity will be denoted by vector elements e.g V = IVx + JVy + KVz or V 1R where 1V is the unit direction Radial and V is the scalar speed. Some people think the + or - sign gives direction toward or from the origin. That is true but + or - does not make the quantity a vector.


If an object has zero acceleration what two things could be true about its velocity?

The velocity does not change direction or magnitude. The object 1) may not be moving, or it 2) may be moving at a constant velocity. In the case of the latter, that means it's moving in the same direction and at a constant speed.


Is it true or false that velocity only describes the direction in which the object is moving?

Technically, the term velocity means how fast and in what direction is a given object moving; knowing the velocity is certainly part of calculating how long it takes to get from one place to another, but you also have to know how far apart those places are. If two locations are 100 miles apart, and you can drive that distance at 50 miles per hour, then the trip takes two hours.