Question

When a force of 5N acts on a surface, it produces a pressure of 500 Pa.
The area of surface then must be
a) 10 cm2
b) 50 cm2
c) 100 cm2
d) 0.01 cm2
Answer:
The correct answer is c) 100 cm2
SOLUTION:
Pressure = Force / Area
Area = Force / Pressure
= 5 N / (500 Pa)
= 0.01 m2
= 0.01 × 10^4 cm^2
= 100 cm2

Why is 10^4 cm^2 multiplied to 0.01 m^2??

Answer 1

Answer:

answer : c) 100cm²

Explanation:

Since Area = Force/ Pressure

=5N/500pa

=0.01m² or 1m =100cm

0.01=1cm

0.01m²=100cm²

Therefore, Area of the surface is 100cm² .

Make sure to like it

Answer 2

Answer:

Explanation:

Concept:

The push or pull on a mass-containing item changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. The application of force is the location at which force is applied, and the direction in which the force is applied is known as the direction of the force.

Given:

Force acts on the surface = $5N$

Pressure = $500Pa$

Find:

We have to find the area of the surface

Solution:

Given that

Force acts on the surface = $5N$

Pressure = $500Pa$

Pressure = Force / Area

Area = Force / Pressure

       $=\frac{5N}{500Pa}$

       $=0.01m^2\\=0.01\times10^4cm^2\\=100cm^2$

Area of the surface = $100cm^2$

Why is $10^4 cm^2$multiplied to $0.01 m^2$:

I want to make a key distinction clear here. A meter square is NOT the same as a square meter. The former, or "square meter," is a measurement of AREA while the latter, or "meter square," refers to a linear dimension of an area where each side - however many there are - is stated in terms of "meter."

When all the sides are specified in terms of "meter," the area will be considered to be "square meters." Given that $1$cm = $0.01$ meter, $1$ sq cm is equal to $0.01m \times 0.01m$ or $0.0001m.$

$10^{-4} m$. Therefore, if you need to "square" CM to convert it to "square meter," you must multiply by $10^{-4} .$

#SPJ2