Question

what is acceleration?​

Answer 1

Answer:

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Answer 2

Answer:

Acceleration, rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down.

Acceleration is defined as the change in the velocity vector in a time interval, divided by the time interval.

Three levels

Three kinds of acceleration stress are distinguished—positive, negative, and transverse—according to the position of the body with relation to the direction of acceleration.

Magnitude

Acceleration is simply a rate of change of velocity. So the magnitude tells you, how quickly velocity changes. That is, your speed changed by 20ms every 2 seconds, or 10ms every second. Thus, when we talk about the magnitude of acceleration, we are talking about how quickly your speed changes in a given unit of time.

Explanation:

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