Question

What is negative acceleration? Give any two examples .

Answer 1

Answer:

Negative acceleration is known as retardation.

Explanation:

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Answer 2

Explanation: when the velocity of body decreases or when breaks are applied it is called negative acceleration .it is also called retardation or deacceleration.

U=100m/s V=20m/s T=20sec

E.g.. a=v-u/t

=20-100/20

=-80/20

=-4m/s^2

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