Question

Explain the following :
i. Sleepers are used below the rails.
ii. A tall building has wide foundations.​

Answer 1

Answer:

i.Sleepers are laid below the rails so that the weight of passing train is spread over a large area (whic decreases pressure) and the track may not sink into the ground.

ii.Buildings have a wide Foundation so that the pressure exerted by it less. When area increases pressure is decreases.