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.
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.
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 .
no a body can only have positive velocity .sometimes it have negative acceleration
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.
Yes, all a negative acceleration means is the object is slowing down.
The acceleration is zero for a body having constant velocity.
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
Zero acceleration means no change in velocity and no force on the zero accelerating body.
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.
The velocity of the body does not change.
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.
The acceleration is zero for a body having constant velocity.
Acceleration is the CHANGE in velocity; you're assuming CONSTANT velocity. So the acceleration is zero.
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
Zero acceleration means no change in velocity and no force on the zero accelerating body.
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.
The velocity of the body does not change.
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.
No. A velocity indicates a speed and direction. An acceleration is a change in speed or direction.
"Acceleration" means change of velocity. If velocity is constant, then acceleration is zero.
No; acceleration means the velocity changes.No; acceleration means the velocity changes.No; acceleration means the velocity changes.No; acceleration means the velocity changes.
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.