Question

if A body has increasing and positive acceleration then its velocity must be?​

Answer 1

When an object is speeding up, the acceleration is in the same direction as the velocity. In each case, the acceleration of the object is in the negative direction. In Example C, the object is moving in the positive direction (i.e., has a positive velocity) and is slowing down.

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Answer 2

Answer:

A horizontal line (a slope of zero) indicates that the object has zero acceleration and is moving at constant velocity. On a graph, if a line has positive slope, we say that the object has positive acceleration; if the line has negative slope, we say that the line has negative acceleration