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Yes, an object can increase in speed and decrease in acceleration.
In fact, this is normally the case whenever you get moving in a car.
Say you are starting up from a stop light in your car (for simplicity assume you have an automatic transmission). If you push the gas pedal part way down and hold it in the same position, then the car will start out at its maximum acceleration. The faster the car goes, the less the acceleration will be.
You can feel this yourself. If you are going slow (say under 20 mph) and push the gas pedal all the way down, you will feel your self being pushed back into the seat (unless you have a very low powered car). Now when you are traveling fast (maybe 60 mph) and you do the same thing, you will notice you are not pushed back in the seat as hard (unless you have a very high powered car). How hard you are pushed back in the seat is a measure of how fast you are accelerating. At the higher speed your acceleration is less. If you just held the pedal all the way down from 20 to 60 the same thing would happen. That is, the acceleration would be less at 60 than at 20, but because of the way the body reacts to acceleration, it is harder to tell that the acceleration is decreasing slowly as the speed increases.
Or, a similar but more quantitative experiment you can do in your car is: With the same gas pedal position, measure how long it takes to go (accelerate) from 10 to 20 mph 20 to 30, 30 to 40, 40 to 50, and then from 50 to 60 mph. You will find that each higher 10 mph takes longer. Acceleration is defined as how fast your speed (in a vector form) is changing. So, you can see that your acceleration is less at higher speeds because it is taking longer to get the same change in speed.
Yes, it is possible for an object to be increasing in speed while its acceleration is decreasing. This can happen when the acceleration is in the opposite direction to the velocity of the object, causing the object to slow down. As the acceleration decreases but remains negative, the object can still be moving in the positive direction, resulting in an increase in speed.
No, acceleration is the rate of increase or decrease in the velocity of an object. An object at high velocity will have zero acceleration if its velocity is not changing. A slow moving object will have high acceleration if its velocity is changing quickly. Answer: The above is correct, but if you have... say a fast moving object in the earth's atmosphere, like a space shuttle entering the earth atmosphere, the faster it goes, the more force will be applied to it to slow it down by the air it has to pass through. So, its possible, that, if you give something a large velocity, like a base ball for example, it will be subject to larger resistance to motion force, which is proportional to the velocity squared and will consequently accelerate more in the opposite direction of motion.
It is very important not to get velocity and acceleration mixed up though. Velocity is the rate of change of displacement; acceleration is the rate of change of velocity. Simply having a high velocity in the absence of an atmosphere will not cause a greater acceleration by itself.
Normally no. But if we mix accelaration with deccelaration, then we can have something like the following example
Suppose we have the following data:
T1= 0 sec , V1=100 m/s
T2= 1 sec , V2=80 m/s
If during the period T1-T2, the acceleration, which actually is decceleration, is constant, then we can say that this accelaration a1= -20 m/s^2
Suppose that at T3 = 2 sec , V3 = 70 m/s, and that during the period T2-T3 the accelaration (which is still deccelaration) is constant, then we can say that this accelaration a2 = -10 m/s^2.
So, for the period T1 to T3, the speed is decreasing (from 100 to 70) , while the accelaration increases from a1= -20 to a2= -10 m/s^2 .
not necessarily. on earth for example there is a constant acceleration of 9.8 m/s^2. if you drop an object off a building its speed will increase but the acceleration acting on the object will remain the same
I think probably the accelaration of the object will increase from newton's law. V^2 =U^2 +2as . there will be an increase in the final velocity of the object as well as displacement.
Yes. Even though the acceleration rate is decreasing, it is still accelerating but at a lower (or slower?) rate. When acceleration rate reaches 0, the speed stops increasing and remains steady.
No. If the acceleration is decreasing, its speed will also decrease.
Yes. As long as acceleration of object is greater than zero in the direction of its movement, the speed in that direction continues to increase.
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Can an object be increasing in speed as the magnitude of its acceleraction decreases?
Yes, an object can be increasing in speed even as the magnitude of its acceleration decreases if the object is subject to forces that oppose its motion, like friction or air resistance. In this case, the object may be accelerating due to an unbalanced force, but as the opposing force increases, the net acceleration decreases while the object continues to speed up.
What is the definition of deceleration acceleration?
Deceleration is the rate at which an object slows down or decreases its speed. Acceleration is the rate at which an object speeds up or increases its velocity. Both are measures of how quickly an object's motion changes.
When is acceleration of an object positive?
Acceleration of an object is positive when its velocity is increasing over time. This means the object is speeding up in the direction of its motion.
Does acceleration have a negative or positive value if the velocity is increasing speed?
Acceleration has a positive value if the velocity is increasing speed. Positive acceleration means the object is speeding up.
Does acceleration refers to increasing speed decreasing speed or changing direction?
Acceleration refers to increasing or decreasing speed. When an object changes its speed, it is said to be accelerating, whether the speed is increasing or decreasing. Changing direction is related to a different aspect of motion called velocity.
Can an object be increasing in speed as the magnitude of its acceleraction decreases?
Yes, an object can be increasing in speed even as the magnitude of its acceleration decreases if the object is subject to forces that oppose its motion, like friction or air resistance. In this case, the object may be accelerating due to an unbalanced force, but as the opposing force increases, the net acceleration decreases while the object continues to speed up.
What is the definition of deceleration acceleration?
Deceleration is the rate at which an object slows down or decreases its speed. Acceleration is the rate at which an object speeds up or increases its velocity. Both are measures of how quickly an object's motion changes.
When is acceleration of an object positive?
Acceleration of an object is positive when its velocity is increasing over time. This means the object is speeding up in the direction of its motion.
Does acceleration have a negative or positive value if the velocity is increasing speed?
Acceleration has a positive value if the velocity is increasing speed. Positive acceleration means the object is speeding up.
What is called when an object's speed decreases?
car negative acceleration, also deceleration
Does acceleration refers to increasing speed decreasing speed or changing direction?
Acceleration refers to increasing or decreasing speed. When an object changes its speed, it is said to be accelerating, whether the speed is increasing or decreasing. Changing direction is related to a different aspect of motion called velocity.
Can a body have decreasing acceleration but increasing speed?
Yes, a body can have decreasing acceleration but increasing speed if the acceleration is negative (deceleration). This means the object is slowing down but still moving in the positive direction, leading to an increase in speed.
What is a Simple definition of acceleration?
Acceleration is the rate of change of an object's velocity with respect to time. It is a measure of how quickly the object's speed is increasing or decreasing.
How is speed and acceleration related?
Speed is a scalar quantity that represents the rate at which an object is moving, while acceleration is a vector quantity that represents the rate of change of an object's velocity. Acceleration can affect the speed of an object by either increasing or decreasing it, depending on whether the acceleration is in the same direction as the object's motion or in the opposite direction. In general, the greater the acceleration, the faster an object's speed will change.
How is velocity of zero different from an acceleration of zero?
Velocity is the rate of change of an object's position over time. A velocity of zero means the object is not moving at all. Acceleration, on the other hand, is the rate of change of an object's velocity over time. An acceleration of zero means the object is moving at a constant velocity, not speeding up or slowing down.
What do you call the process of increasing speed?
The process of increasing speed is called acceleration. It measures how quickly the velocity of an object changes over time.
In science acceleration refers to increasing speed decreasing speed or changing what?
Acceleration in science refers to the rate of change of an object's velocity, which can involve increasing speed, decreasing speed, or changing direction. It is a vector quantity that describes how an object's motion is changing over time.
