Question

a body of mass 2kg of is on a table keeping it's surface of area 100cm2 on the table calculate the thrust ​

Answer 1

Accomplished Question :

A body of mass 2kg of is on a table keeping it's surface of area 100cm2 on the table calculate the thrust and pressure exerted by body.

⠀

AnswEr :

⠀

• Force applied by body = 19.6 N.

• Pressure exerted by body = 196 Pascal.

⠀

Explanation :

We are given with the body of mass as well as surface area of the table, that is,

⠀

• Mass of body, m = 2 kg.

• Surface area of table = 100 cm².

⠀

We need to calculate the thrust and pressure exerted by body.

⠀________________________

First we will convert the unit of area from cm² to m².

→ Area = 100 cm²

→ Area = 100/1000

→ Area = 0.1 m².

⠀

We know that thrust is equal to the force.

And we also know that the value of acceleration due to gravity is 9.8 m/s².

⠀

As we are given with the mass nad acceleration due to gravity then we know the required formula to calculate the force, that is,

⠀

→ F = ma.

⠀

By using the formula to calculate the force applied by body and substituting the given values in the formula, we get :

⠀

$\sf{:\implies F = 2 \times 9.8}$

⠀

$\sf{:\implies\boxed{ \frak{ \pink{F = 19.6}}}}$

⠀

Hence, the force applied by body is 19.6 N.

⠀

Now,

We know that, if we are given with the force applied by body and surface area then we have the required formula to calculate the pressure exerted by body, that is,

⠀

→ Pressure = Force/Area.

⠀

By using the formula to calculate the pressure exerted by body and substituting the given values in the formula, we get :

⠀

$\sf{:\implies Pressure = \cancel{\dfrac{19.6}{0.1} }}$

⠀

$\sf{:\implies \boxed{ \pink{ \frak{Pressure = 196}}}}$

⠀

Hence, the pressure exerted by body is 196 Pascal.