Question

a solid weighs 200n calculate the pressure exerted by the solid when it is kept on a glass surface if the area of contact is 500 cm sq.

Answer 1

Answer:

pressure = force / area

= 200 N / 500 cm^2

= 0.4 N / cm^2

= 0.4 pa

hope it helps you

Answer 2

Answer:

The pressure exerted by the solid is 4×10³ Pascal.

Explanation:

The pressure is calculated as,

$P=\frac{F}{A}$     (1)

Where,

P=pressure exerted over a cross-sectional area

W=weight of the solid

A= area over which the weight is spread

From the question we have,

The weight of the solid=200N

The area over which the weight is spread=500 cm²=500×10⁻⁴m²

when we enter the values into equation (1), we obtain;

$P=\frac{200}{500\times 10^-^4}$

$P=4\times 10^3 \ Pascal$

The pressure exerted by the solid is 4×10³ Pascal.

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