If 12 identical books kept together weighs 6 ½ kgs, what is the weight of each
book?
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Step-by-step explanation:
Pressure=
Area
Thrust
\sf \bigstar\ \; \blue{P=\dfrac{F}{A}}★ P=
A
F
If area becomes half keeping thrust constant ,
\begin{gathered}\sf New\ pressure,P'=\ ?\\\\\sf New\ Area,A'=\dfrac{A}{2}\\\\\sf New\ Thrust,F'=F\end{gathered}
New pressure,P
′
= ?
New Area,A
′
=
2
A
New Thrust,F
′
=F
Since , Thrust is constant .
\begin{gathered}\implies \sf P'=\dfrac{F'}{A'}\\\\\implies \sf P'=\dfrac{F}{\frac{A}{2}}\\\\\implies \sf P'=\dfrac{2F}{A}\\\\\implies \sf P'=2(\dfrac{F}{A})\\\\\implies \sf \orange{P'=2P}\ \; \bigstar\end{gathered}
⟹P
′
=
A
′
F
′
⟹P
′
=
2
A
F
⟹P
′
=
A
2F
⟹P
′
=2(
A
F
)
⟹P
′
=2P ★
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