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# What is the horizontal acceleration of a projectile?

Updated: 11/1/2022

Wiki User

15y ago

The horizontal acceleration i.e. Vx throughout the trajectory remains constant only of the air resistance is neglected. The gravity can affect the y-component of velocity but is unable to affect its x-component. Acceleration (delta V) does not occur unless a change comes into play per Newton. Gravity does not effect x but air resistance would. Likewise, projectiles launched from e.g. an explosion experience a reducing delta V in that acceleration from an explosion is subject to the inverse square rule.

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15y ago

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Q: What is the horizontal acceleration of a projectile?
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### How do the horizontal components of a projectile motion vary from the vertical components?

In projectile motion, the horizontal component of motion is constant and does not change, while the vertical component is affected by gravity causing it to accelerate downwards. This results in a parabolic path of the projectile where the horizontal distance traveled is determined by the initial velocity and angle of projection, while the vertical distance is influenced by gravity.

### Which of the velocity component of projectile changes and other remain constant why?

The vertical velocity component changes due to the effect of gravity, which causes acceleration in the downward direction. The horizontal velocity component remains constant because there are no horizontal forces acting on the projectile (assuming air resistance is negligible).

### 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.

### What quantities remain constant in projectile motion?

In projectile motion, the horizontal component of velocity remains constant. The acceleration due to gravity acts vertically and remains constant throughout the motion. The total mechanical energy of the projectile remains constant if air resistance is neglected.

### How does gravity affect the 2 components of projectile motion?

Gravity affects the vertical component of projectile motion by accelerating the object downwards, increasing its speed as it falls. This causes a parabolic trajectory. Gravity has no effect on the horizontal component, which remains constant unless an external force is applied.

### What do you need to know to be able to determine how far a projectile travels horizontally?

To determine how far a projectile travels horizontally, you need to know the initial velocity of the projectile, the angle at which it was launched, and the acceleration due to gravity. Using these values, you can calculate the time of flight and then multiply it by the horizontal component of the initial velocity to find the horizontal distance traveled.

### What do need to know to determine how far projectile travels horizontally?

To determine how far a projectile travels horizontally, you need to know the initial velocity of the projectile, the angle at which it was launched, and the acceleration due to gravity. Using these values, you can calculate the horizontal distance traveled using the projectile motion equations.

### 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.

### Why a small departure from 45 degree landing angle can reduce the horizontal range?

The range of a projectile on level ground, when air resistance is ignored, isd = v2*sin(2x)/g wherev is the intial velocity of the projectile,x is the angle above the horizontal at which the projectile is launchedandg is the acceleration due to the earth's gravity.This function is a maximum when x = 45 degrees and so d is smaller for other values of x.The range of a projectile on level ground, when air resistance is ignored, isd = v2*sin(2x)/g wherev is the intial velocity of the projectile,x is the angle above the horizontal at which the projectile is launchedandg is the acceleration due to the earth's gravity.This function is a maximum when x = 45 degrees and so d is smaller for other values of x.The range of a projectile on level ground, when air resistance is ignored, isd = v2*sin(2x)/g wherev is the intial velocity of the projectile,x is the angle above the horizontal at which the projectile is launchedandg is the acceleration due to the earth's gravity.This function is a maximum when x = 45 degrees and so d is smaller for other values of x.The range of a projectile on level ground, when air resistance is ignored, isd = v2*sin(2x)/g wherev is the intial velocity of the projectile,x is the angle above the horizontal at which the projectile is launchedandg is the acceleration due to the earth's gravity.This function is a maximum when x = 45 degrees and so d is smaller for other values of x.

### What is the name of the curved path of a projectile that accelerates only in the vertical direction while moving at a constant horizontal velocity?

The curved path is called a parabolic trajectory. This occurs due to the combination of the projectile's initial horizontal velocity and the acceleration due to gravity in the vertical direction.

### 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.