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Suppose you increase your walking speed from 1 m/s to 4 m/s in a period of 2 s. What is your acceleration? Dont forget your units.

User Carter Allen
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1 Answer

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18 votes

The acceleration is given by the change in velocity over the change in time:


a=(\Delta V)/(\Delta t)=(V_f-V_i)/(t_f-t_i)

If the initial velocity is 1 m/s, the final velocity is 4 m/s and the interval of time is 2 seconds, we have:


\begin{gathered} a=(4-1)/(2)\\ \\ a=(3)/(2)\\ \\ a=1.5\text{ m/s^^b2} \end{gathered}

Therefore the acceleration is equal to 1.5 m/s².

User Rushikesh
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