Question

4. Explain the Following Term:
(a)Positive acceleration and Negative acceleration.​

Answer 1

Answer:

positive acceleration

the rate of change of velocity is called acceleration.if velocity is obtained by positive value than it becames positive acceleration.

negative acceleration

this is known as retardation.

Answer 2

Explanation:

That means that the direction of the acceleration determines whether you will be adding to or subtracting from the velocity. Mathematically, a negative acceleration means you will subtract from the current value of the velocity, and a positive acceleration means you will add to the current value of the velocity.

Positive acceleration= A bus or car moving with increasing speed has positive acceleration. We can say that it is accelerating with the direction of travel. Negative acceleration=In the above example, if we apply the break, the speed of the car decreases. Then it has negative acceleration.

i hope it will help you