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The 'x' component of the velocity is usually the label given to the horizontal

component. Also, remember, we generally ignore air-resistance in this type

of exercise. When we do that, there is no horizontal force on the object, so

the horizontal component of velocity can't change.

The only force on the object is gravity, and that's completely vertical, so only

the vertical component of velocity can change.

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How can the horizontal velocity of a projectile be described?

The horizontal velocity of a projectile remains constant if there is no air resistance or external forces acting horizontally. This means that the horizontal component of the projectile's velocity does not change throughout its trajectory, only its vertical component is affected by gravity.


Why does the vertical component of velocity for a projectile change with time where as the horizontal component of velocity doesn't?

The vertical component of velocity changes due to the influence of gravity, which accelerates the projectile downwards as it moves. The horizontal component of velocity remains constant because there is no horizontal force acting on the projectile, assuming air resistance is negligible.


In the absence of air friction does the horizontal component of a projectile's velocity change as the projectile moves is this True False?

A projectile will travel on a straight line unless external forces act upon it. Gravity will pull the projectile downward, i.e. affect its vertical velocity component. This is why the projectile will decelerate upwards, reach a maximum elevation, and accelerate back down to earth. The force vector of air resistance points in the opposite direction of motion, slowing the projectile down. For example, If the projectile is going forward and up, air resistance is pushing it backwards (horizontal component) and down (vertical component). Without air resistance, there is no external force acting upon the horizontal velocity component and the projectiles ground speed will stay constant as it gains altitude and falls back down to earth.


What velocity of a projectile is considered to be constant?

The velocity of a projectile is considered to be constant when there is no change in speed and direction. This usually occurs in the absence of any external forces, such as air resistance or gravity, that could affect the projectile's motion.


As a projectile shot at an upward angle rises and falls what happens to its horizontal component of its velocity if you neglect air resistance?

If there wouldn't be air resistance and gravity is the only thing that is effecting the projectile, the projectile will start to fall but it horizontal velocity will remain the same. So it would slow down, it would only change height.

Related Questions

How can the horizontal velocity of a projectile be described?

The horizontal velocity of a projectile remains constant if there is no air resistance or external forces acting horizontally. This means that the horizontal component of the projectile's velocity does not change throughout its trajectory, only its vertical component is affected by gravity.


Why does the vertical component of velocity for a projectile change with time where as the horizontal component of velocity doesn't?

The vertical component of velocity changes due to the influence of gravity, which accelerates the projectile downwards as it moves. The horizontal component of velocity remains constant because there is no horizontal force acting on the projectile, assuming air resistance is negligible.


In the absence of air friction does the horizontal component of a projectile's velocity change as the projectile moves is this True False?

A projectile will travel on a straight line unless external forces act upon it. Gravity will pull the projectile downward, i.e. affect its vertical velocity component. This is why the projectile will decelerate upwards, reach a maximum elevation, and accelerate back down to earth. The force vector of air resistance points in the opposite direction of motion, slowing the projectile down. For example, If the projectile is going forward and up, air resistance is pushing it backwards (horizontal component) and down (vertical component). Without air resistance, there is no external force acting upon the horizontal velocity component and the projectiles ground speed will stay constant as it gains altitude and falls back down to earth.


What velocity of a projectile is considered to be constant?

The velocity of a projectile is considered to be constant when there is no change in speed and direction. This usually occurs in the absence of any external forces, such as air resistance or gravity, that could affect the projectile's motion.


As a projectile shot at an upward angle rises and falls what happens to its horizontal component of its velocity if you neglect air resistance?

If there wouldn't be air resistance and gravity is the only thing that is effecting the projectile, the projectile will start to fall but it horizontal velocity will remain the same. So it would slow down, it would only change height.


What is the horizontal acceleration of a projectile as its position changes?

In the usual simple treatment of projectile motion, the horizontal component of the projectile's velocity is assumed to be constant, and is equal to the magnitude of the initial (launch) velocity multiplied by the cosine of the elevation angle at the time of launch.


A projectile is thrown with an initial velocity which has a horizontal component of 4 m s What will be its horizontal speed after 3s?

The horizontal speed of the projectile remains constant as there is no force acting in the horizontal direction to change it. Therefore, the horizontal speed of the projectile after 3 seconds will remain at 4 m/s.


Why in the projectile motion the horizontal component of acceleration becomes zero?

In projectile motion, the only force acting horizontally is the initial velocity, which does not change over time in the absence of external horizontal forces. This means that the acceleration in the horizontal direction is constant and therefore zero because there are no forces causing a change in velocity in that direction.


Which velocity component changes along the path?

The motion of a projectile is a combination of two motions, a constant speed motion in the horizontal direction, and an accelerated motion in the vertical direction. The velocity component that changes along the path is Vy.


Why does a projectile maintain its horizontal component of velocity?

Because there's no horizontal force acting on it that would change its horizontal component of velocity. (In practice, that's not completely true, since the frictional 'force' of air resistance acts in any direction. But outside of air resistance, there's nothing else acting horizontally on the projectile.)


What is the magnitude of the velocity of a vertical projectile at its maximum height is equal to?

The horizontal component of a projectile's velocity doesn't change, until the projectile hits somethingor falls to the ground.The vertical component of a projectile's velocity becomes [9.8 meters per second downward] greatereach second. At the maximum height of its trajectory, the projectile's velocity is zero. That's the pointwhere the velocity transitions from upward to downward.


The horizontal and vertical components of a projectile's velocity are independent of each other what does this statement mean?

That means the if you change one you do not necessarily change the other. In the case of the projectile the vertical component is dependent on time (if it is a projectile near a large mass like the earth) gravity acts on it accelerating the projectile in a downward direction. The horizontal component remains the same during the entire flight (if we disregard air resistance and such things).