A car accelerates at a rate of $5 m s^{- 2}$ . Find the increase in its velocity in $2 s$ .

10 m s^{- 1}

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2.5 m s^{- 1}

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5 m s^{- 1}

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2 m s^{- 1}

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Solution

The correct option is D $10 m s^{- 1}$
Acceleration $= 5 m s^{- 2}$
Time $= 2 s$
Increase in velocity $=$ acceleration $\times$ time $= (5 \times 2) m s^{- 1} = 10 m s^{- 1}$

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A car accelerates at a rate of 5ms−2. Find the increase in its velocity in 2s.

The correct option is D 10ms−1Acceleration =5ms−2Time =2sIncrease in velocity = acceleration × time =(5×2)ms−1=10ms−1

A car accelerates at a rate of $5 m s^{- 2}$ . Find the increase in its velocity in $2 s$ .

The correct option is D $10 m s^{- 1}$
Acceleration $= 5 m s^{- 2}$
Time $= 2 s$
Increase in velocity $=$ acceleration $\times$ time $= (5 \times 2) m s^{- 1} = 10 m s^{- 1}$