Question

A bus started from rest and travelling with velocity of 30 m/s in 20 seconds what is its acceleration

Answer 1

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● A bus started from rest and travelling with velocity of 30 m/s in 20 seconds what is its acceleration...?

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☆Accleration = 1.5 m/s^2

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♧GIVEN...

✒ Initial velocity = 0 m/s

✒Final velocity= 30 m/s

✒Time taken = 20 sec

♧TO FIND..

✒ Accleration of the body..?

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$\large{ \mathrm{ \mapsto{ \purple{u \: must \: know...}}}} \\ \\ \huge{ \boxed{ \mathrm{ \bold{ \green{v = u + at}}}}} \\ \\ \large{ \mathrm{v = final \: velocity}} \\ \\ \large{ \mathrm{u = initial \: velocity}} \\ \\ \large{ \mathrm{a = accleration}} \\ \\ \large{ \mathrm{t = time \: taken}}$

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$\large{ \mathrm{ \mapsto{ \purple{by \: using \: formula...}}}} \\ \\ : \large{ \mathrm{ \implies{30 = 0 + a \times 20}}} \\ \\ : \large{ \mathrm{ \implies{30 = 20a}}} \\ \\ : \large{ \mathrm{ \implies{a = \frac{ \cancel{30} \: \: 3}{ \cancel{20} \: \: 2} }}} \\ \\ : \large{ \implies{ \boxed{ \red{ \mathrm{a = 1.5 \: m {s}^{ - 2} }}}}}$

$\therefore{\large{ \bold{ \mathrm{ \underline{ \orange{required \: answer \: is \: 1.5 \: m {s}^{ - 2} }}}}}}$

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$\large{ \bold{ \underline{ \star{ \green{ \: similar \: formulas}}}}} \\ \\ \large{ \mathrm{ \bullet{ \: \: s = ut + \frac{1}{2} a {t}^{2} }}} \\ \\ \large{ \mathrm{ \bullet{ \: \: {v}^{2} = {u}^{2} + 2as}}} \\ \\ \large{ \mathrm{ \bullet{ \: \: \red{s}nth = u + \frac{a}{2} (2n - 1)}}}$