What is acceleration? What is its direction,and state its $SI$ unit.
(N/A) Acceleration is defined as the rate of change of velocity with respect to time.
Its direction is the same as the direction of the change in velocity.
The $SI$ unit of acceleration is $m/s^2$ or $m s^{-2}$.
Its direction is the same as the direction of the change in velocity.
The $SI$ unit of acceleration is $m/s^2$ or $m s^{-2}$.
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Similar Questions
Match the items in Column-$I$ with the items in Column-$II$ correctly.
Column-$I$ Column-$II$ $(1)$ Acceleration is positive $(a)$ Speed of the particle decreases $(2)$ Acceleration is negative $(b)$ Speed of the particle increases $(c)$ Speed of the particle keeps changing
| Column-$I$ | Column-$II$ |
|---|---|
| $(1)$ Acceleration is positive | $(a)$ Speed of the particle decreases |
| $(2)$ Acceleration is negative | $(b)$ Speed of the particle increases |
| $(c)$ Speed of the particle keeps changing |
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