Question

Q. 2. Give an example of positive acceleration and
negative acceleration.
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Answer 1

Answer:

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.

Answer 2

Throw a ball vertically upward:

Gravity will be its negative acceleration causing it to slow its speed and later it will stop at its peak.

When ball comes down:

Gravity will be its positive acceleration causing it to fall with gradually increasing speed.