Question

$\sf {Answer \: this \: correctly \: \colon)}$
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Answer 1

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Acceleration:- 8m/sec²

Final velocity:- 40m/sec

Explanation:

If distance is given and to find acceleration than we have Second equation of motion

$\huge \: s = ut + \frac{1}{2} a {t}^{2}$

Putting the values

$\large \: 100 = 0 \times t + \frac{1}{2} a( {5})^{2}$

$\large \: a = \frac{2 \times 100}{25} = 8$

Now we need to find velocity for that we use 1st equation of motion

$\huge \: v = u + at$

$\large \: v = 0 + 8 \times 5 = 40$

hence

v=40 and a=8