Question

is it possible to have positive and negative acceleration. if it is possible when it is happened give few examples for it​

Answer 1

Answer:

i am positive that i will win

Answer 2

Answer:

A positive acceleration means an increase in velocity with time. negative acceleration means the speed reduces with time. its a retardation.

An object with negative acceleration could be speeding up, and an object with positive acceleration could be slowing down. ... Consider the fact that acceleration is a vector that points in the same direction as the change in velocity.

Example:—

1.) For negative acceleration —

→When you flop down on your bed, you undergo negative acceleration. When you place an object on a table, the object undergoes negative acceleration too. ...

→When a moving object is losing speed constantly with time, the motions is in negative acceleration, or deceleration.

2.)For positive acceleration —

→An aeroplane accelerating for take off. →Accelerating a car to increase its speed.