Question

why would you prefer a multi storey building to have a wide Foundation on a narrow one ? Why ?​

Answer 1

bcoz wide foundation gives larger area and lowering the pressure of dead load. but narrow foundation gives smaller area and greater pressure.

Answer 2

Multi storey building must prefer a wide foundation as it lowers the pressure hence it would be safe

Explanation:

• Pressure on any body is the factor which depends upon the net force acting on it and the area on which that force is applied or exerted
• $Pressure = \frac{force}{area}$    as shown in the expression that pressure and area are in inverse relation to each other hence smaller is the area more pressure will be exerted or vice- versa
• Hence to build a multi- storey building it is preferred that base should be wide
• If we build a building having narrow base it have more chances to collapse or may even walls burst out

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