Jawaban:

PEMBAHASAN

Diketahui :

\displaystyle\sf V = 1~m^3V=1 m

3

\displaystyle\sf A = 2~cm^2 \Rightarrow 2 \times 10^{-4}~m^2A=2 cm

2

⇒2×10

−4

m

2

\displaystyle\sf v = 10~m/sv=10 m/s

Ditanya : Bak mandi akan penuh dalam waktu \displaystyle\sf (t)(t) = . . . ?

Jawab :

\displaystyle\sf Q = \dfrac{V}{t}Q=

t

V

\displaystyle\sf Av = \dfrac{V}{t}Av=

t

V

\displaystyle\sf (2\times 10^{-4})(10) = \dfrac{1}{t}(2×10

−4

)(10)=

t

1

\displaystyle\sf 2 \times 10^{-3} = \dfrac{1}{t}2×10

−3

=

t

1

\displaystyle\sf \dfrac{1}{t} = 2 \times 10^{-3}

t

1

=2×10

−3

\displaystyle\sf \dfrac{1}{t} = 2 \times \frac{1}{1000}

t

1

=2×

1000

1

\displaystyle\sf \dfrac{1}{t} = \dfrac{1}{500}

t

1

=

500

1

\displaystyle\sf t = 500~st=500 s

\displaystyle\boxed{\boxed{\bf\therefore Bak~akan~penuh~dalam~~waktu~500~s }}