Question

three difference between average velocity and relative velocity and three difference between acceleration and retardation



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Answer 1

Answer:

Acceleration:

Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity. As velocity is an example of vector, it has direction and magnitude. So we can explain the acceleration in any of these three ways:

a change in direction (from East to North-East)

a change in both speed and direction (from 34 km/h East to 12 km/h West)

a change in speed, the magnitude of the velocity (from 34 km/h to 67 km/h)

Velocity:

The amount of motion normalized to time is defined to be the velocity of the object. It is thus the displacement of the object divided by the time required to make the displacement. [The object in Tissue Tracking Echocardiography (TTE) is mainly a single point or a Region of Interest (ROI).] Hence, its unit is cm/s.

Explanation:

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