Question

give reason (l) building have wide foundations for safety

Answer 1

▪Buildings have wide foundations for safety because if the area on which the thrust acts is more, then the pressure exerted by the building will be less. The foundation will be able to balance the weight of the building.

▪ Thrust is the force acting perpendicular on the surface.

Hope it helps! :)

Answer 2

Buildings are massive structures which exerts tremendous pressure on the ground and likely to sink. To avoid sinking their foundations are made wide, so that pressure on the ground decreases.