Question

define acceleration and give SI unit when is acceleration of body negative




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Answer 1

Answer:

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Explanation:

Acceleration can be defined as the rate of change of velocity.. It is a vector quantity .. Its SI unit is meter/second^2. When the velocity of an object decreases,then the object is said to be moving with negative acceleration.. An example of negative acceleration would be a car breaking or decelerating.

Answer 2

Answer:

acceleration (symbol: a) is defined as the rate of change (or derivative with respect to time) of velocity. ... In SI units, acceleration is measured in meters/second² using an accelerometer.

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