Question

State the conditions for positive and negative acceleration

Answer 1

Answer: When the velocity of a body increases with time its acceleration is positive. Acceleration of an object is positive if its direction is the same as that of the direction of the motion of the object. ... If an object moving with certain velocity is brought to rest then the object is said to have negative acceleration.

Answer 2

Answer:

When an object is speeding up, the acceleration is in the same direction as the velocity. Thus, this object has a positive acceleration. the object is moving in the negative direction (i.e., has a negative velocity) and is slowing down. ... Thus, this object has a negative acceleration.