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Only instantaneously. If an object is being negatively accelerated, it will be slowing down. If the negative acceleration continues to act on the body, it may, at some point have zero velocity because it has come to a stop, but still have the force acting on it. In the next instant, the object will then be accelerated in another direction. This isn't a "trick" answer. It is just offered to explain a situation in mechanics where an object with some initial velocity is experiencing negative acceleration due to some decelerating force. The dynamics are pretty simple and easy to get your head around if you think about them.

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15y ago
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11y ago

No. The magnitude of acceleration is the rate of change of speed. If speed

is increasing, then its rate of change ... and therefor the magnitude of the

acceleration ... is positive.

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11y ago

Yes. In a given moment a body in motion can have its velocity drop to zero but have an acceleration different from zero.

i.e., When you throw a ball straight up, its velocity will become zero at its highest

point, and its acceleration will be -9.81 m/s2 .

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12y ago

no a body can only have positive velocity .sometimes it have negative acceleration

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11y ago

Yes.

For example, when we throw a ball straight up in the air, the point at which the ball is at its highest point, it has zero velocity but is accelerating in the downward direction.

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9y ago

Yes, all a negative acceleration means is the object is slowing down.

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Q: Can a body have zero velocity and finite acceleration?
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Why is the body moving with a uniform velocity is zero?

The body is not zero, but the sum of all forces on it is. -- "Uniform velocity" means no acceleration. -- Acceleration is force/mass . -- If acceleration is zero, that's an indication that force must be zero.


When a body has constnat velocity what is the acceleration?

The acceleration is zero for a body having constant velocity.


Why is acceleration zero when the body is moving with a constant velocity?

Acceleration is the CHANGE in velocity; you're assuming CONSTANT velocity. So the acceleration is zero.


What is the difference between rest and equilibrium?

Velocity of body and acceleration of body is zero implies body is at rest Acceleration of body is zero implies it is in a state of equilibrium Body in equilibrium can have non zero velocity


Meaning of zero acceleration?

Zero acceleration means no change in velocity and no force on the zero accelerating body.


Can a body have acceleration with zero velocity?

Yes, but only for an instant. For example, if you throw a stone up, when it is at its highest point it has a velocity of zero, but its acceleration is -9.8 m/s2. If there is acceleration, the velocity can not remain at zero.


What does it mean for a body to have zero acceleration?

The velocity of the body does not change.


An a body more with constant acceleration but with zero velocityif yeswhy?

No. Well, such a body can have zero velocity for a brief instant, but it won't stay at such a velocity, because "acceleration" implies that the velocity changes.


Can a body have zero velocity and still acceleration?

No. A velocity indicates a speed and direction. An acceleration is a change in speed or direction.


If an object is moving at a constant velocity what do you know about its acceleration?

"Acceleration" means change of velocity. If velocity is constant, then acceleration is zero.


Is it possible for a body to have an acceleration when moving with constant velocity?

No; acceleration means the velocity changes.No; acceleration means the velocity changes.No; acceleration means the velocity changes.No; acceleration means the velocity changes.


If a body is moving with constant velocity is it moving with constant acceleration?

An object moves with constant velocity when there is no net force acting upon it. If there are no forces acting on an object, or if the forces acting on it "cancel out" leaving a net force of zero acting on the object, it will have zero acceleration. With a zero acceleration, the velocity of the object will be constant.