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Answer 1
It means the change in speed is a constant, over the time interval in question. Another view is to plot speed versus time, you would get a straight line with a constant slope. For the geeks, it means the function representing distance versus time is a quadradic (power of 2), so that the second derivative (acceleration) is a constant. For example if the distance versus time is
D=3T**2
then the speed at any point in time is (the 1st derivative)
S=6T
and the acceleration is the 2nd derivative
A=6
which is no longer dependent on time (ie: it is a constant).
Answer 2
Deceleration is the negative form of acceleration, meaning when something is slowing down, i.e. that the velocity keeps decreasing as time keeps increasing until velocity reaches 0.
The uniform part concerns the rate of the slowing. Deceleration can have jerk, meaning that the change in velocity between two equidistant points in time is different. Uniform deceleration lacks jerk, meaning that all changes in velocity over time are constant. In lay men's terms, for example, when you stop a car by applying the breaks, the speed of the car might decrease from 35 to 30 miles per hour in one second and then decrease from 30 to 20 miles per hour in the next second. This shows jerk because in the first instance the deceleration was half of the second deceleration. If the example were changed so that in the second second, the speed dropped from 30 to 25 miles per hour, this would be uniform.
Therefore uniform deceleration is when something slows down at a consistent rate.
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What is instantaneous velocity in math?
if under uniform acceleration or deceleration v = u + (a*t) where: v = instantaneous velocity u = initial velocity a = acceleration (negative if decelerating) t = time elapsed
What is the term which means to change speed?
Acceleration or deceleration
Is deceleration and retardation same?
"Deceleration" is a decrease in speed, however you are still going in the SAME direction so it is POSITIVE. "Retardation" is going in the OPPOSITE direction, therefore it is NEGATIVE.
What is a model in which each outcome has an equal probability of occurring?
A uniform distribution.A uniform distribution.A uniform distribution.A uniform distribution.
What does against uniform mean and for uniform?
When someone is against uniform it means not to wear them. It mean that they do not like uniform and they are not allow.
What is the uniform rate of decrease of velocity of a moving body?
Uniform Constant Deceleration
What is the difference between deceleration and retardation?
Deceleration refers to any reduction in speed, while retardation specifically refers to a decrease in speed due to an opposing force, like friction or air resistance. Essentially, all cases of retardation involve deceleration, but not all deceleration is due to retardation.
Meaning of uniform motion?
Uniform motion refers to an object moving in a straight line with a constant speed, where the object covers equal distances in equal intervals of time. In such motion, the object's velocity does not change, and there is no acceleration or deceleration involved.
What does uniform mean in physics?
In physics, "uniform" typically refers to a condition where a physical quantity (such as velocity or acceleration) remains constant or does not change with time. For example, uniform motion means an object is moving at a constant speed in a straight line without acceleration or deceleration.
What is the abbreviation for deceleration?
The abbreviation for deceleration is decel. Another common abbreviation for deceleration is dec. There is not a standard abbreviation in place for deceleration.
What will be the body said ----- velocities when average and instantaneous velocities are equal?
When the average velocity of a body is equal to its instantaneous velocity, it means that the body is moving at a constant speed in a straight line. This indicates that the body's motion is uniform, with no acceleration or deceleration occurring.
How the velocity uniform?
Velocity is uniform when an object moves at a constant speed in a straight line without changing direction. This means that the object covers equal distances in equal intervals of time. Uniform velocity indicates a consistent rate of motion without acceleration or deceleration.
What the definition of deceleration?
The definition for deceleration is: a decrease in rate of change; for example: "The deceleration of the arms race."
What is meant by uniform and non uniform motion?
Uniform motion is when an object covers equal distances in equal intervals of time, moving at a constant speed in a straight line. Non-uniform motion is when an object covers unequal distances in equal intervals of time, either changing its speed, direction, or both.
When does uniform linear motion happen?
Uniform linear motion occurs when an object moves in a straight line with a constant speed, meaning it covers equal distances in equal intervals of time. This type of motion does not involve any acceleration or deceleration, and the object maintains a constant velocity throughout.
What is instantaneous velocity in math?
if under uniform acceleration or deceleration v = u + (a*t) where: v = instantaneous velocity u = initial velocity a = acceleration (negative if decelerating) t = time elapsed
Which object has a constant speed?
An object in uniform motion has a constant speed. This means it moves at the same speed and in the same direction without any acceleration or deceleration.
