When is acceleration positive, negative, and zero? give one example in each case.
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Heyy!!
Explanation:
The body moves in a straight line, it neither speed up or down nor change direction . 【 In vector form , if angle between velocity vector and acceleration vector is less than 90° and greater than 0° then it is positive acceleration and if it is less than 180° and greater than 90° then it is negative acceleration.
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