Question

who will answer question 9 and 10 fast and correct will be marked as brainliest​

Answer 1

9.when a truck have 1 tyre then it will face a large pressure since pressure = load of truck / area of 1 tyre, but when the truck will have 8 tyre the load of truck will get divided into 8 parts since pressurein thiz case = load of truck / area of 8 tyre.

and this will aow it to carry a large load.

10.Some application of pressure in our daily life are ;-

a. while drilling nail into the wall with the help of hammer.

b. while carrying school bag we have strips which reduces pressure.

thank u...

Answer 2

Trucks carrying heavy loads use eight tires to reduce the pressure on its tyres. As the surface area increases the force/load is spread over a larger area and hence reducing the pressure. This reduction in pressure allows the truck to move better and also protects the tyres from excessive wear and tear.

Another 3 reasons:-

•In order to distribute the heavy weight of the cargo they are carrying.

•In order to make a larger surface do the braking.

•So that the vehicle can be used on sandy, unpaved roads like there are near construction sites

uses of pressure in daily life:-

1.Air pressure in car tire supports the weight of the car 

2.Sucking a drink through a straw - fluid flows because of pressure difference. 

3.Aircraft fly because of the air pressure on the wings. 

4.Bullet fired from a gun is driven by gas pressure 

5.Toy balloon inflates because of air pressure inside