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Acceleration

A body starts...

Question

A body starts from rest and acquires a velocity $10 m s^{- 1}$ in 2 s. Find the acceleration.

10 m s^{- 2}

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20 m s^{- 2}

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5 m s^{- 2}

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40 m s^{- 2}

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Solution

The correct option is C $5 m s^{- 2}$
Acceleration = Change in velocity per unit time.
Therefore, Acceleration $a = \frac{10 m / s}{2 s} = 5 m / s^{2}$

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A body starts with an initial velocity of 10 $m s^{- 1}$ and acceleration 5 $m s^{- 2}$ .Find the distance covered by the body in 5 s.

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