Page 10 - Pressure 10 class

Heavy loaded trucks are provided with paired wheels.

➢ Heavy loaded trucks are equipped with huge masses of

loads that puts huge pressure on the tyre of vehicles by

which it may burst. Pair wheels cover large area on the

road. Increase in area decrease pressure and vice-versa.

Since, pressure is inversely proportional to area keeping

force constant. When pressure is decreased then the

heavy loaded truck can run smoothly on road with less

possibility of bursting of tyres by more pressure.

Hermit sleep on bed of nail.

➢ Pointing nails facing upward is kept making a bed which

covers more area. When area increases, pressure

decreases. Since, pressure is inversely proportional to the

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area (i.e. P∝ ) keeping force constant. When pressure

decreases hermit can sleep easily on the bed of nails with

no pain. Hence, it is said that hermit can sleep on the bed

of nails.
July 30, 2020 Taranath Baral/GC Shiba/Suraj Thapaliya 10