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The vertical component of a projectile's velocity is irrelevant. It can be up, down, or

zero, makes no difference. As long as projectile motion lasts ... gravity is the only

force on the object and you're ignoring air resistance ... its acceleration is constant,

and is equal to the acceleration of gravity: 9.8 meters per second2 pointing down.

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Q: What is the vertical acceleration of a projectile if the vertical component of its velocity vector is zero?
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Why does the vertical component of velocity for a projectile change with time where as the horizontal component of velocity doesn't?

Because gravity is acting on the vertical component, exerting a constant -9.8m/s2 worth of acceleration.


How is the horizontal component of velocity for a projectile affected by the vertical component?

The horizontal component of velocity for a projectile is not affected by the vertical component at all. Horizontal component is measured as xcos(theta) Vertical component is measured as xsin(theta) Whereas theta is the angle, and x is the magnitude, or initial speed.


Projectile's vertical velocity component changes at a constant?

Gravity... I think


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.


In projectile motion Why is the vertical component of velocity zero at the highest point of the trajectory?

Just before it reaches the highest point, the vertical component of velocity is upward.Just after it passes the highest point, the vertical component of velocity is downward.There's no way you can change from an upward velocity to a downward velocity smoothlywithout velocity being zero at some instant. A.True.

Related questions

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

Because gravity is acting on the vertical component, exerting a constant -9.8m/s2 worth of acceleration.


How is the horizontal component of velocity for a projectile affected by the vertical component?

The horizontal component of velocity for a projectile is not affected by the vertical component at all. Horizontal component is measured as xcos(theta) Vertical component is measured as xsin(theta) Whereas theta is the angle, and x is the magnitude, or initial speed.


Projectile's vertical velocity component changes at a constant?

Gravity... I think


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.


What is the acceleration of a projectile when instantaneous vertical velocity is zero at the top of its projectile?

Acceleration at the point of zero vertical velocity will be equivalent to gravitational acceleration on that body. On Earth, for example, this is around 9.8 meters per second per second (9.8m/s2).


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.


What is a vertical projectile?

One that goes directly up - the velocity having no horizontal component.


In projectile motion Why is the vertical component of velocity zero at the highest point of the trajectory?

Just before it reaches the highest point, the vertical component of velocity is upward.Just after it passes the highest point, the vertical component of velocity is downward.There's no way you can change from an upward velocity to a downward velocity smoothlywithout velocity being zero at some instant. A.True.


What quantities remain constant in projectile motion?

All that I can think of are: 1.) Gravity 2.) Wind 2.A) wind speed 2.B) direction of wind 3.) Angle of trajectory 4.) Initial speed of projectile 5.) Material through which projectile travels (as in density) 6.) Mass of projectile 7.) Spin 7.A) speed of spin 7.B) axis/axes spining occurs on 8.) Shape of projectile 9.) Temperature of medium projectile is in 10.) Size of projectile (as in height, width, and depth) 11.) Weighting of projectile 12.) Obsturctions to projectile's path In a vaccuum, though, these are the variables: 1.) Speed of object 2.) Obstructions in path 3.) Gravity


How does the unbalanced force of gravity affect the horizontal and vertical velocity of an object in projectile?

In the absence of air resistance, the force of gravity has no effect on the horizontal component of a projectile's velocity, and causes the vertical component of its velocity to increase by 9.8 meters (32.2 feet) per second downward for every second of its flight.


Why does the horizontal component of velocity for a projectile remain constant while the vertical component changes?

Since the velocity is constant due to the fact that there are no external forces acting in the horizontal direction, if you neglect air resistance, therefore, the horizontal velocity of a projectile is constant.


How does gravity affect the 2 components of projectile motion?

-- Gravity causes the vertical component of projectile motion to vary according to the local acceleration of gravity. -- Gravity has no effect at all on the horizontal component of projectile motion.