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Yes it can be.When a body has its initial velocity greater than its final velocity, then the body can have negative acceleration since acc.=change in velocity/time
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoYes, just matter at what past your going
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Two words for what happens when an objects velocity decreases?
negative acceleration
Can acceleration be a negative number?
Yes, the scalar value of acceleration can be a negative number. Acceleration is the rate of change of velocity. If the speed of an object is reducing (it is slowing down), then the object is subject to a negative acceleration. An example is when you apply the brakes in a car. The brakes change the speed of the car from a higher value to a lower value, thus imposing a negative acceleration. Colloquially, people speak of deceleration, however the correct term is negative acceleration.
It is physically impossible for an object to have a negative acceleration and yet be speeding up?
Not yet possible, maybe later. Acceleration is the first derivative of the speed by definition. So this comes back to a mathematical question. When do we have a first derivative negative? The only possibility is that the function has a negative slope, meaning in the case of the object trajectory, that the object's speed is decreasing. If you could have objects decelerating while speeding up you should also think about accelerating objects winding down and steady objects wandering abound. As this was not easy to find conceptual representation for such situations, God just said to objects "thou will stop speeding up when you have a negative acceleration, capito?" <<>> The answer could be 'yes' if the body has a negative velocity as well as a negative acceleration (relative to a given system of coordinates). In that case the speed is increasing even though the acceleration is negative.
What is deceleration in physics?
'Acceleration' is defined as the rate of change in velocity and the direction of the change. 'Deceleration' is a popular but unscientific word used to describe acceleration with a negative magnitude, i.e. 'slowing down' without regard for its direction.
What is positive and negative acceleration?
Positive acceleration = speeding up. Negative acceleration = slowing down.
Two words for what happens when an objects velocity decreases?
negative acceleration
Can acceleration be a negative number?
Yes, the scalar value of acceleration can be a negative number. Acceleration is the rate of change of velocity. If the speed of an object is reducing (it is slowing down), then the object is subject to a negative acceleration. An example is when you apply the brakes in a car. The brakes change the speed of the car from a higher value to a lower value, thus imposing a negative acceleration. Colloquially, people speak of deceleration, however the correct term is negative acceleration.
When velocity is negative and acceleration is positive what happens to an objects motion?
Its slowing down (but still moving).
It is physically impossible for an object to have a negative acceleration and yet be speeding up?
Not yet possible, maybe later. Acceleration is the first derivative of the speed by definition. So this comes back to a mathematical question. When do we have a first derivative negative? The only possibility is that the function has a negative slope, meaning in the case of the object trajectory, that the object's speed is decreasing. If you could have objects decelerating while speeding up you should also think about accelerating objects winding down and steady objects wandering abound. As this was not easy to find conceptual representation for such situations, God just said to objects "thou will stop speeding up when you have a negative acceleration, capito?" <<>> The answer could be 'yes' if the body has a negative velocity as well as a negative acceleration (relative to a given system of coordinates). In that case the speed is increasing even though the acceleration is negative.
Can a car have negative velocity and negative acceleration?
It cannot have negative velocity, it can have negative acceleration.
Can there be a positive acceleration and a negative acceleration?
Yes, acceleration can be positive and negative because acceleration is a vector. It has both direction and magnitude. The direction is what makes it positive or negative. Negative acceleration is usually called deceleration.
What is negative and acceleration?
Positive acceleration = speeding up. Negative acceleration = slowing down.
What is deceleration in physics?
'Acceleration' is defined as the rate of change in velocity and the direction of the change. 'Deceleration' is a popular but unscientific word used to describe acceleration with a negative magnitude, i.e. 'slowing down' without regard for its direction.
What is positive and negative acceleration?
Positive acceleration = speeding up. Negative acceleration = slowing down.
Both speed and acceleration include the direction of an objects motion?
Yes! In most problems direction needs to be defined as either positive or negative.
Is it possible for an objects velocity to be perpendicular to the objects acceleration?
no
A plane taking off is a negative acceleration?
A plane landing is a negative acceleration - "negative" meaning it slows down.
