Question

solve the problem...​

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.

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AnswEr :-

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• Force applied by body = 19.6 N.

• Pressure exerted by body = 196 Pascal.

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Explanation :-

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

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• Mass of body, m = 2 kg.

• Surface area of table = 100 cm².
• We need to calculate the thrust and pressure exerted by body.

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

• → Area = 100 cm²
• → Area = 100/1000
• → Area = 0.1 m².

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• 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.

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

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→ F = ma.

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

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

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

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• Hence, the force applied by body is 19.6 N.

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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,

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→ Pressure = Force/Area.

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

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

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

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Hence, the pressure exerted by body is 196 Pascal.

Answer 2

Given:-

• mass of the body = 2kg
• surface area of the table = 100cm² = 0.1m²

To find:-

• thrust or pressure

Formula to be used:-

$\underline{\boxed {\sf F = mg}}$

here,

• f = force
• m = mass
• g = acceleration due to gravity = 9.8m/s²

$\underline{\boxed {\sf pressure = \dfrac{Force}{Area}}}$

Solution:-

$\longrightarrow$ F = (2)(9.8)

$\longrightarrow$ F = 19.6N

$\longrightarrow$ P = $\sf\cancel\dfrac{19.6}{0.1}$

$\longrightarrow$ P = 196 Pascal