Question

What is the acceleration of a sprinter which starts from rest (0m/s) and takes four second to get a speed of 16m/s-

Answer 1

Given that ,

Initial velocity (u) = 0 m/s

Final velocity (v) = 16 m/s

Time (t) = 4 sec

We know that , the acceleration of a body is given by

$\large \sf \fbox{Acceleration \: (a) = \frac{v - u}{t} }$

Thus ,

$\sf \mapsto a = \frac{16 - 0}{4} \\ \\ \sf \mapsto a = 4 \: \: m/ {s}^{2}$

$\therefore \sf \underline{The \: acceleration \: is \: 4 \: m/ {s}^{2} }$