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Oksana_A [137]
3 years ago
6

Make s, u subject of the formula

TexFormula1" title="v^{2} = u {}^{2} + 2as" alt="v^{2} = u {}^{2} + 2as" align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
Zanzabum3 years ago
7 0

Answer:

\boxed{u = \pm \sqrt{ {v}^{2} - 2as}}

\boxed{s =  \frac{ {v}^{2}  -  {u}^{2} }{2a}}

Step-by-step explanation:

<em>•</em><em>Making u subject for </em><em>f</em><em>ormula v² = u² + 2as:</em>

Solve \:  for \:  u:  \\ =  >  {v}^{2}  = {u}^{2} +2as \\  \\ {v}^{2}  = {u}^{2}  + 2as \:  is \:  equivalent \:  to \:    {u}^{2}  + 2as = {v}^{2} : \\  =  >  {u}^{2}  + 2as =  {v}^{2}  \\  \\ Subtract  \: 2as  \: from \:  both \:  sides:  \\  {u}^{2}   =  {v}^{2}  - 2as \\  \\ Take \:  the  \: square \:  root \:  of  \: both \:  sides:  \\  =  > u= \sqrt{ {v}^{2} - 2as }   \:  \: \:  \:  or \:  \:  \:  \:  u=- \sqrt{ {v}^{2} - 2as} \\ u = \pm \sqrt{ {v}^{2} - 2as}

<em>•</em><em>Making</em><em> s subject for formula v² = u² + 2as:</em>

<em>Solve  \: for  \: s:  \\  =  > {v}^{2}  =2as+ {u}^{2}  \\  \\ {v}^{2}  =2as+ {u}^{2} is equivalent to 2as+ {u}^{2} = {v}^{2}:  =  >  2as+ {u}^{2} = {v}^{2} \\   \\ Subtract  \:  {u}^{2}   \: from  \: both \:  sides:  \\  =  > 2as= {v}^{2}  -  {u}^{2} \\  \\ Divide  \: both \:  sides \:  by  \: 2 a:  \\  =  > s =  \frac{ {v}^{2} }{2a}  -  \frac{ {u}^{2} }{2a}  \\  =  > s =  \frac{ {v}^{2}  -  {u}^{2} }{2a}</em>

Romashka [77]3 years ago
6 0

Answer:

s = \frac{v^2-u^2}{2a}

Step-by-step explanation:

Given

v² = u² + 2as ( subtract u² from both sides )

v² - u² = 2as ( divide both sides by 2a )

\frac{v^2-u^2}{2a} = s

Given

v² = u² + 2as ( subtract 2as from both sides )

v² - 2as = u² ( take the square root of both sides )

± \sqrt{v^2-2as} = u

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