Question

why we always take acclaration constant
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Answer 1

Answer:

This gives us average value of g as 9.81 ms−2 on the surface of earth. Also that value of g varies insignificantly if distance between the body and the surface of earth is very small as compared to average radius of the earth. Therefore, for practical purposes we take acceleration due to gravity as a constant.

Answer 2

Answer:

because when acceleration is constant then the body is at rest or moving in a uniform motion........

Explanation:

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