Question

A body weighing 5N placed on a surface of area 0.1 m2 ,exerts a pressure on the surface equal to a) 50 N/m2 b) 25 N/m2 c) 45 N/m2 d) 30 N/m2
please help fast

Answer 1

Answer:

(A) 50 Pascals

Explanation:

Given :

• Force acting on the surface = weight = 5 Newtons

• Surface area = 0.1 m²

To find :

• Pressure acting on the surface

Pressure = Force / area

Pressure = 5 N/ 0.1 m²

Pressure = 50/1

Pressure = 50 N/m²

1 N/m² = 1 Pascal

Pressure = 50 pascals

The pressure acting on the surface area of 0.1 m² with a force of 5 Newtons is equal to 50 Pascals

Hence option (a) is correct

Note : pressure can be measured in N/m², N/cm², N/mm²

Answer 2

Given :-

• Force = 5N

• Area on which force acts = 0.1m²

To Find:-

• Pressure on the surface.

Solution :-

➦Pressure = Force/Area

➭ P = F/A

➭ P = 5/0.1

➭ P = 50/1

➭ P = 50 Pascal

∴ The pressure acting on the surface is 50Pa.

Hence, option (a) 50N/m² is the correct answer.