Question

(1) define acceleration

(2) define instantaneous acceleration?

(3) define average acceleration?
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Answer 1

Answer:

This is your answer...

Answer 2

Answer:

1. Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.
2. Instantaneous acceleration is the acceleration of the object at some discrete instant in time and can be found by taking the derivate of the velocity function. In other words, instantaneous acceleration, or simply acceleration, is the rate of change of velocity with respect to time.
3. Average acceleration is the change in velocity divided by an elapsed time. For instance, if the velocity of a marble increases from 0 to 60 cm/s in 3 seconds, its average acceleration would be 20 cm/s/s. This means that the marble's velocity will increase by 20 cm/s every second.