Question

A stone weighs 500 N. Calculate the pressure exerted by it if it makes a contact with a surface of area 25 cm2.


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Answer 1

Solution:-

Force (F) = 500 N

↬ The stone makes a contact with a surface of area 25 cm².

• Area (A) = 25 cm²

↬ 25/10000

↬ 0.0025 m² or 25 × 10-⁴ m²

GIVEN:-

• We have to find the Pressure (P) exerted by the stone.

_____________________________

We know that ..

Pressure is defined as force per unit area.

i.e.

↬Pressure =

$\dfrac{Force}{Area}$

Put the known values in above formula

↬Pressure =

$\dfrac{500}{0.0025}$

↬Pressure =

$200000 \: or \: 2 × 10^{5}10 \: N/m²$

Also..

$1 \: N/m² = 1 \: Pa \: (pascal)$

So..

↬Pressure =

$2 × 10^{5}Pa$

_____________________________

↬Pressure =

$2 × 10^{5} \: N/m² \: or \: Pa.$

Answer 2

Explanation:

pressure = force /area , pothuma quality..

apram ellame si units ,,mm..unit mukiyam vashini..