Question

5.Acceleration is a vector quantity, which indicates that its value
(a) Is always negative
(b) Is always positive
(c) Is zero
(d) Can be positive, negative or zero​

Answer 1

Acceleration is a vector quantity , that means:

• It is a physical quantity defined by both magnitude and direction.

Now, whenever we take a reference frame and observe the direction of acceleration, we can term it as :

• Positive or Negative.

• However, the magnitude of acceleration is zero, acceleration can also be a null vector.

So, any vector like acceleration , i.e. displacement, etc. can be positive, negative or zero.

$\star$ Hope It Helps.