The surface of water in a water tank of cross section area $750\ \mathrm{cm^2}$ on the top of a house is $h\ \mathrm{m}$. above the tap level. The speed of water coming out through the tap of cross section area $500\ \mathrm{mm^2}$ is $30\ \mathrm{cm\ s^{-1}}$. At that instant, $\frac{dh}{dt}$ is $x imes10^{-3}\ \mathrm{m\ s^{-1}}$. The value of $x$ will be ______.

Question

The surface of water in a water tank of cross section area $750\ \mathrm{cm^2}$ on the top of a house is $h\ \mathrm{m}$. above the tap level. The speed of water coming out through the tap of cross section area $500\ \mathrm{mm^2}$ is $30\ \mathrm{cm\ s^{-1}}$. At that instant, $\frac{dh}{dt}$ is $x	imes10^{-3}\ \mathrm{m\ s^{-1}}$. The value of $x$ will be ______.

Dr. Abubacker · Accepted Answer

The correct numerical answer is 2.

Explanation

Reviewed by Dr. Abubacker

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