Science
Physics

# What is velocity in a up or down direction?

###### Wiki User

Velocity if the rate of change in an objects position. If an object moves up or down, its velocity changes. So velocity happens in both directions.

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## Related Questions

Velocity is a vector so it has magnitude (size) and direction. so to change velocity all you need to do is slow down or speed up or change direction. This is also known as acceleration which is the rate of change in velocity. Velocity is a vector so it has magnitude (size) and direction. so to change velocity all you need to do is slow down or speed up or change direction. This is also known as acceleration which is the rate of change in velocity.

Yes, it is possible. For example, if you through an object up, its velocity would initially be in the "up" direction, but its acceleration would be in the "down" direction.

Any change in velocity, whether to speed up, slow down, or just change direction, results from acceleration. Acceleration is an expression of the rate of change of velocity.

The direction of angular acceleration comes from whether the angular speed of the object is clockwise or counterclockwise and whether it is speeding up or slowing down.The direction of the angular acceleration will be positive if the angular velocity is counterclockwise and the object's rotation is speeding up or if the angular velocity is clockwise and the object's rotation is slowing downThe direction of the angular acceleration will be negative if the angular velocity is clockwise and the object's rotation is speeding up or if the angular velocity is counterclockwise and the object's rotation is slowing downThe angular acceleration will not have a direction if the object's angular velocity is constant

To change the acceleration of a car: speed up, slow down or turn. Acceleration is any change in velocity. Velocity is "how fast" and in "what direction". To speed up is to accelerate (increase the velocity). To slow down is to deaccelerate (decrease the velocity) To turn is also a form of acceleration (changes the direction of the velocity).

slow object down, and also change the 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.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.

velocity in an up or down movement is vertical velocity

Yes.If the car is backing up, but slowing down, then its velocity is in the negative direction, and its acceleration is in the positive direction.

acceleration means change in velocity. Velocity changes when you...speed upslow downchange direction

When the car is slowing down, there must be at least a component of acceleration in the direction opposite to its velocity.

Yes, since the velocity changes, there is acceleration. Note that the velocity is made up of a speed, and a direction - and in circular motion, the direction changes all the time.Yes, since the velocity changes, there is acceleration. Note that the velocity is made up of a speed, and a direction - and in circular motion, the direction changes all the time.Yes, since the velocity changes, there is acceleration. Note that the velocity is made up of a speed, and a direction - and in circular motion, the direction changes all the time.Yes, since the velocity changes, there is acceleration. Note that the velocity is made up of a speed, and a direction - and in circular motion, the direction changes all the time.

Yes. Acceleration is change in velocity. Velocity is either change in speed or change in direction. If you fix the speed, change in direction can account for change in velocity, i.e. acceleration.

Momentum is mass x velocity; velocity has a direction, therefore momentum has a direction.Momentum is mass x velocity; velocity has a direction, therefore momentum has a direction.Momentum is mass x velocity; velocity has a direction, therefore momentum has a direction.Momentum is mass x velocity; velocity has a direction, therefore momentum has a direction.

Objects that do not speed up, slow down, or change it's direction unless they are pulled in some kind of way can change velocity.

Anytime an object is slowing down, its acceleration is in the opposite direction to its velocity.

Restate the question: When are acceleration and velocity pointing in the opposite direction? If you are going forward but slowing down, then the velocity is positive, but the acceleration is negative.

Vector addition of velocities would be if something like you were on an escalator, which is going down, and you tried to run up the escalator. So if the escalator is moving down at a rate of 5 ft/sec and you run up at 13 ft/sec (relative to the escalator) then the net velocity relative to the Earth is 8 ft/sec up. So you just subtract, because the two vectors are in the same line. OK so really the direction is at an angle (rather than 'up'). The larger velocity direction will determine the net direction. If you were walking up the escalator at 3 ft/sec (relative to the escalator), then your net velocity is 2 ft/sec down.

Speed object up, slow it down, change it's direction (or a combination of slowing/speeding and changing the direction).

Yes. For example, if you throw a ball straight up in the air, it has a positive initial velocity, but the acceleration due to gravity is in the other direction. From your perspective, until the point when it starts coming back down it will be "decelerating" but really that's just acceleration in the opposite direction of the velocity.

The three types of changes in velocity can happen when things speed up, slow down, or change direction. These movements will alter the velocity of the object that is involved.

No, acceleration is change in velocity. (And velocity is speed in a certain direction.) If an object slows down, then it is changing velocity and thus accelerating. (In this case, the acceleration is negative.) If an object changes direction, then it's velocity changes, so this is also acceleration. (This is centripetal acceleration.)

When an object speeds up, slows down, or changes direction, it is changing it's velocity, also known as accelerating.This is a common term in mechanical physics. The formula for velocity is D(distance) / T(time) whereas acceleration is the change in velocity which takes time to do making its fomula: D/T^2