Question

a person applies a force of 20 Newton on the head of the pump in the pressure exerted by the top of the pin is 2 x 10^2 N/m^7. what is the contact area of the tip​

Answer 1

Answer:

• 0.1 m² is the required Area of contact

Explanation:

Given:-

• Pressure ,P = 2 × 10² N/m²
• Force ,F = 20 N

To Find:-

• Area of Contact ,A

Solution:-

As we have to calculate the area of contact of the tip .

Pressure is defined as the force per unit area.

• P = F/A

where,

• P denote Pressure
• F denote Force
• A denote contact area.

Substitute the value we get

→ 2×10² = 20/A

→ 2×10² × A = 20

→ A = 20/2×10²

→ A = 10/100

→ A = 0.1 m².

• Hence, the area of contact is 0.1 m².

Answer 2

Answer:

Correct Question :-

• A person applies a force of 20 N on the head of the pump in the pressure exerted by the top of the pin is 2 × 10² N/m². What is the contact area of the tip.

Given :-

• A person applies a force of 20 N on the head of the pump in the pressure exerted by the top of the pin is 2 × 10² N/m².

To Find :-

• What is the area of the pin.

Formula Used :-

✪ Pressure = Force/Area ✪

Solution :-

Given :

• Pressure = 2 × 10² N/m²
• Force = 20 N

According to the question by using the formula we get,

⇒ 2 × 10² = 20/A

⇒ 2 × 100 = 20/A

⇒ 200 = 20/A

⇒ A = 20/200

⇒ A = 2/20

➠ A = 0.1 m²

∴ The contact area of the tip is 0.1 m² .