Page 11 - Pressure 10 class
P. 11
Tanks are provided with metallic belt over sharp toothed
wheel.
➢ Tanks are used to move during the war. It carries heavy
load along with during the warfare. Heavy load in the tank
increases the forces that causes to increase pressure. Since,
pressure is directly proportional to the force keeping area
constant. Very high pressure developed on the wheel can
cause the tank to get descent on the land. In order to
prevent from possible descent, they are provided with
wider metallic chain which cover more area. Increase in
area decreases the pressure and prevents the tank from
getting descent.
It is easier to swim in sea or ocean than in a Rara lake.
➢ Seas contains salt in it so it has comparatively greater
density than the Rara lake. Greater density in seas causes
liquid upthrust to be more than Rara lake with less density.
Due to more liquid upthrust, it is easier to swim in oceans.
July 30, 2020 Taranath Baral/GC Shiba/Suraj Thapaliya 11
