No, it's only the acceleration. By (-)ve acceleration ,it means retardation or deceleration..

Acceleration. Deceleration is a decrease of speed during a given interval of time.

Speed

acceleration

"acceleration"

It is said to be accelerated

positive acceleration

false

This isn't really a computer-related question but speedis the rate at which something travels at a given interval of time.

(change in distance) divided by (time interval) = the object's average speed during that time interval.

That is called speed, or - if the direction is also relevant - velocity.

retardation is nothing but the decrease in speed. so if the increase in speed can be taken as positive then for sure decrease in speed can be taken as negative acceleration.

Acceleration has two parts ... its size and its direction.To find the size (magnitude):-- pick a time interval-- measure the speed at the beginning of the interval-- measure the speed at the end of the interval-- subtract the speed at the beginning from the speed at the end-- divide that difference by the length of the time interval-- the result is the magnitude of acceleration during that time interval

No. It is the change in velocity (not speed) during a given interval of time. It can be an increase or a decrease although a decrease is also called a deceleration.The distinction between velocity and speed can best be illustrated by an object going round in a circle at a constant speed. It is changing direction all the time so that its velocity is constantly changing. It is constantly accelerating even though it is travelling at constant speed.

Average velocity is change in position (displacement) divided by the interval.

The average speed of an object in an interval of time is the distance traveled by the object divided by the duration of the interval.

Acceleration = (speed at the end of some time interval minus speed at the beginning of the interval)/(length of the time interval)

Speed is always a factor, whether you are stopping for a school bus or not.

Why do you pull the sneaker at a slow speed for stopping friction?

The shift of velocity per unit of given time is called acceleration. The types of acceleration are negative acceleration and positive acceleration.

instantaneous speed

Calculate the gradient of the curve which will give the acceleration. Change the sign of the answer to convert acceleration into retardation.

If n answers are given in t seconds then the average speed of answer is n/t answers per second. t could be a longer time interval, if appropriate.

You haven't given us any information from which to calculate that speed. As far as we know from the question, the object isn't moving at all.

No. Average speed is the rate an object is moving measured over more than an instant, such as one second, one minute, or something like that. Instantaneous speed, however, is the limit of the average speed as the interval of time approaches zero, i.e. at a given instant.

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