Define acceleration and give its SI unit. When is acceleration of a body negative and positive? Give two examples of situations in which acceleration of the body is negative and positive.
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Change in velocity per unit time is known as acceleration .
a = v-u / t
It is a vector quantity
It's SI unit is m/s²
There are two types of acceleration Negative and positive .
The acceleration in which the final velocity is more than initial velocity is positive acceleration.
The acceleration in which final velocity is less than initial velocity is negative acceleration
@:-)
Change in velocity per unit time is known as acceleration .
a = v-u / t
It is a vector quantity
It's SI unit is m/s²
There are two types of acceleration Negative and positive .
The acceleration in which the final velocity is more than initial velocity is positive acceleration.
The acceleration in which final velocity is less than initial velocity is negative acceleration
@:-)
Viveksonu:
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