Question

A boy with mass 60kg has shoes having area 320cm^2 each standing on the ground. Calculate pressure exerted by him on the ground while standing on one feet

Answer 1

$\huge\green{A}\orange{N}\red{S}\pink{W}{E}\blue{R}$

P= F/A

F=mg     (m= mass, g= gravity)

F= 60x10

=600N

A= 320cm²

=0.032m²

= 600/0.032

= 18,750Pa

FOLLOW AND MARK AS BRAINLIEST

Answer 2

$\mathcal{\green{\underline{\red{GIVEN:}}}}$

• Mass of the boy (m) = 60 kg.
• He has shoes of area 320 cm² each. ⇒ 0.032m².
• Acceleration due to gravity (g) = 10ms⁻¹.

$\mathcal{\green{\underline{\red{TO \:\: FIND:}}}}$

• We need to find the pressure exerted on the ground by him on one foot.

$\mathcal{\green{\underline{\red{SOLUTION:}}}}$

We know that:

$\boxed{\sf{\blue{Pressure (p) = \frac{Mass \times acceleration \: \: due \: \: to \: \: gravity }{Area} }}}$

$\sf Pressure = \dfrac{60 \times 10}{0.032}$

$\sf Pressure = 18750 \: Nm^{-2}$

$\mathcal{\green{\underline{\red{LEXICAL \:\: TERMS:}}}}$

• Pressure is a physical force exerted on or against an object by something in contact with it.
• The main formulas are:

$\boxed{\sf{\blue{Pressure (p) = \frac{Mass \times acceleration }{Area} }}}$

$\boxed{\sf{\blue{Pressure (p) = \frac{Force}{Area} }}}$

• Here, we should remember that:

Pressure ∝ Force,

Pressure ∝ 1/Area,

Pressure ∝ Mass.