Question

full solution of this question​

Answer 1

Equation for distance travelled in the nth second:

 $s_{n} =u\pm(n-\frac{1}{2} )$

Here a and u are in the same direction, so,

$s_{3}=0+\frac{4}{3}(3-\frac{1}{2})=\frac{24-4}{6}=\frac{10}{3} m$

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