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.
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
Acceleration or deceleration
"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.
A uniform distribution.A uniform distribution.A uniform distribution.A uniform distribution.
When someone is against uniform it means not to wear them. It mean that they do not like uniform and they are not allow.
Uniform Constant Deceleration
retardation and deceleration in uniform linear motoin, they are same but in projectile motion they not the same
motion that is always constant [Either acceleration or deceleration that is called uniform motion......... motion that undergoes a change in velocity,either by changing speed or changing direction,,,,,that.s changes are called non uniform motion......
The abbreviation for deceleration is decel. Another common abbreviation for deceleration is dec. There is not a standard abbreviation in place for deceleration.
Motion that is always constant. ( Either acceleration or deceleration) this is called uniform mothion
The definition for deceleration is: a decrease in rate of change; for example: "The deceleration of the arms race."
deceleration of independence
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
Acceleration and deceleration are both the rate at which velocity changes, Deceleration is a negative acceleration. In an equation the rate of deceleration is shown as a negative acceleration valueCentripetal acceleration is different and represents the rate of change of tangential velocity. There is no equivalent centripetal deceleration.
The rate of deceleration is how quickly something is slowing down.
A positive acceleration is a change in velocity such that the latter velocity is greater than the former velocity and is therefore going fasterwhile a negative acceleration or deceleration is a change in velocity such that the latter velocity is lesser than the former velocity and is therefore going slower.Now let us look at the equation of a uniform acceleration (the change in velocity is uniform):a = (vf-vi)/sIf the final velocity is greater, you will have a positive acceleration. If the initial velocity is greater, you will have a deceleration.
Acceleration is when speed increases. Deceleration is when speed decreases.