when will acceleration of an object be positive, negative or zero?
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acceleration is positive if velocity is changing increasingly like 5m/s to 10 m/ s.it is negative when there is retaredation I. e 10m/s to 5m/s . and it is zero when body moves with constant velocity please mark as btainlist
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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. If there is no acceleration vector then it is called zero acceleration.
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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. If there is no acceleration vector then it is called zero acceleration.
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