Question

A normal force of 100 N can produce a pressure of 10000 Pa. Calculate the area in cm2 on which the force shall act to exert the pressure.

Answer 1

Given :-

• Force = 100 N
• Pressure = 10000Pa

To find :-

• Area in cm²

Solution :-

As we know that

➭ Pressure = Force/Area

➭ 10000 = 100/Area

➭ Area = 100/10000

➭ Area = 1/100 = 0.01m²

☞ 1m² = 10000cm³

Hence,

• Area = 0.01 × 10000 = 100cm²

Extra Information

• Force = mass × acceleration
• S.I unit of Force is Newton (N)
• 1m = 100cm
• S.I unit of pressure is Pascal (P)

Answer 2

Answer:

100 cm²

Explanation:

A normal force of 100 N can produce a pressure of 10000 Pa. Here, pressure is 10000Pa and force is 100N.

Pressure is defined as force per unit area.

Pressure = Force/Area

Assume that the area is x.

Substitute the known values,

10000 = 100/x

x = 100/10000

x = 1/100

x = 0.01

Therefore, the area is 0.01 m². But we have to find area in cm².

1m = 100cm

1m² = 10000cm²

So,

0.01m² = 100cm²

Hence, the area is 100 cm².