Question

3. A woman weighs 650 N and wears high heels with a total area of 52 cm². What is the pressure on the floor?

Answer 1

Answer:

Given:

Force = 650 Newton

Area= 52 cm2= $52 \times 10 {}^{ - 4} m {}^{2}$

What to find =total pressure on the floor?

Solution :

So, Pressure =

$\frac{force}{area} \\ = \frac{650}{52 \times 10 {}^{ - 4} } \\ = \frac{25}{2 \times 10 {}^{ - 4} } \\ = \frac{25 \times 10000}{2} \\ = 25 \times 5000 \\ = 125000 = 1.25 \times 10 {}^{5} \: newton /\ \: meter {}^{2} \: or \: pascal \: [Answer]$

Extra :✈

Pressure =Force exerted by any object per unit area is called pressure.Unit of pressure is Pascals (Pa).

Answer 2

Given:

• Weight = 650 N

• Total area of high heels = 52 cm²

To find out:

Find the pressure on the floor?

Formula used:

Pressure = Force/Area

Solution:

We know,

Weight = Force = 650 N

Area = 52 cm² = 52/10000 m²

Now,

Pressure = Force/Area

Substituting the values in the formula, we get

Pressure = 650N / 52/10000 m²

= 650 × 10000 N / 52 m²

= 6500000 N / 52 m²

= 125000 N/m² or 125000 Pascal ( Pa )

Knowledge Enhancer:

• Thrust: The force acting on a body perpendicular to its surface.

• Buoyancy: The phenomenon of expressing upward in the liquid is called Buoyancy.

• Density: Mass per unit volume is called Density.