Mathematics
7 Online
OpenStudy (anonymous):
v^2=u^2+2as
u=6
a=2.55
s=9
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OpenStudy (perl):
whats the directions?
OpenStudy (bibby):
solve for u^2+2as
and then take the square root of both sides
OpenStudy (anonymous):
36+23.1=59.1
OpenStudy (anonymous):
and then?
OpenStudy (anonymous):
36+23.1=59.1 ==> u^2+2as
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OpenStudy (bibby):
I got a different number. recalculate 2*a*s
OpenStudy (anonymous):
\(\Huge\color{green}{\text{Okay}}\)
OpenStudy (anonymous):
45?
OpenStudy (anonymous):
\(\Huge\color{red}{\text{By the way thnx for your help}}\)
OpenStudy (bibby):
break it up into parts.
a=2.55
s=9
\[\huge 2as = 2*9*2.55\]
btw, no problem
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OpenStudy (anonymous):
Wait so that is 45.9
OpenStudy (anonymous):
then?
OpenStudy (bibby):
correct
OpenStudy (anonymous):
(◕‿-)
OpenStudy (bibby):
(◑‿~)
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OpenStudy (bibby):
sooooo 45.9+36=?
OpenStudy (anonymous):
you want value of v=
OpenStudy (anonymous):
81.9 @bibby
@hazem-wardat yeah i need the value of v
OpenStudy (anonymous):
(✿◠‿◠)
OpenStudy (anonymous):
v= 9.049862
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OpenStudy (bibby):
Exactly. So we have
v^2 = 81.9
To get v alone, you take the square root of both sides
OpenStudy (bibby):
hazem pls (◞≼◉ื≽◟ ;益;◞≼◉ื≽◟)
OpenStudy (anonymous):
(◞≼◉ื≽◟ ;益;◞≼◉ื≽◟)
OpenStudy (anonymous):
should i round to the nearest hundredth
OpenStudy (anonymous):
which is 9.05 or to the nearest tenth will it be 9.0
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OpenStudy (anonymous):
v=(( u^2)+2as) ^0.5
v = ( (6^2) + (2*2.55*9))^ 0.5
OpenStudy (anonymous):
?????????????????????
OpenStudy (bibby):
the 0.5 or 1/2 power is a square root
OpenStudy (anonymous):
yes you can say this
OpenStudy (anonymous):
right that the 0.5 or 1/2 power is a square root
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OpenStudy (anonymous):
so the answer is 0.5 or 9.05
OpenStudy (bibby):
9.05
OpenStudy (anonymous):
Thnx both of you
OpenStudy (bibby):
np (´◉◞౪◟◉)