Question

A body starts from rest with a uniform acceleration of 4 m/s2 and is moving in a horontal direction Distance towed by
it in 5 s is​

Answer 1

Answer:

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Explanation:

The above question is based on equations of motion. There are three equations of motion..

$v = u + at \\ s = ut + \frac{1}{2} at {}^{2} \\ {v}^{2} = {u}^{2} + 2as$

$by \: using \: the \: second \: one \: ... \\ u = 0 \\ t = 5 \: sec \\ a = 4 \\ \\ = > s = ut + \frac{1}{2} at {}^{2} \\ = > s = 0 \times 5 + \frac{1}{2} \times 4 \times {5}^{2} \: m \\ = > s = 25 \times 2 = 50m$

Answer

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Answer 2

Answer:

50m

Explanation:

$s = ut + \frac{1}{2} a {t}^{2} \\ u = 0 \\ because \: it \: starts \: from \: rest \\ 2s = a {t}^{2} \\ a = 4 \frac{m}{ {s}^{2} } \\ t = 5s \\ 2s = 4 \times {5}^{2} \\ 2s = 4 \times 25 \\ 2s = 100m$

s = 50m

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