Question

unit of time is stated twice in unit of acceleration. why?

Answer 1

Unit of time occurs
acceleration = change in velocity / time

we know that velocity = displacement / time

so acceleration = displacement / time / time

i.e., acceleration = displacement / time* time

so here in the denominator the unit of time occurs twice.

Hope it helps...

Answer 2

Hey here is your answer
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Unit of time is stated twice in unit of acceleration because

The change in velocity per in unit time is known as acceleration
:. Acceleration = SI unit of velocity / SI unit of time
a = (m/s)/s
a = m/s^2
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