Question

For motion along a straight line, when do we consider the acceleration to be (i) positive (ii) negative? Give an example of a body in uniform

acceleration.​

Answer 1

Answer:

For motion along the straight line, we consider the acceleration to be positive when the body moves in a particular direction and we consider the acceleration to be negative when the body moves in the opposite direction. When the object speed is increasing at a particular rate then the body said to be in uniform acceleration.

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Answer 2

It is can be positive or negative depending on its direction