Question

A dam for weater reservoir is built thicker at the
bottom than at the top because. ​

Answer 1

Answer:

Assertion: A dam for water reservoir is built thicker at bottom than at the loop. Reason : Pressure of water is very large at the bottom. ... Hence, the dam must have greater strength at base than at top. Due to this dams are made thicker at the base than at the top.

Explanation:

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Answer 2

The pressure applied to walls of the dam will be a function of the amount of water that is over that particular point on the wall. So water pressure is very large at the bottom due to its large depth. That's why dams are constructed thicker at their bottoms than at their tops.

'With the increase in depth the pressure increases according to the formula P∝h. Therefore the force perpendicular to the wall of damincreases. Hence, the dam must have greater strength at base than at top. Due to this dams are made thicker at the base than at the top.

hope this two may help you!!