Question

A block of concrete weight 800N.and it's base is square with 2m long.What pressure does concrete block exert on the ground

Answer 1

Answer:

200 Pa

Explanation:

As per the provided information in the given question, we have :

• Force (F) = 800 N
• Length of the base = 2 m

We are asked to calculate pressure exerted by block on the ground.

Pressure define as force per unit area. Its SI unit is Pa or Pascal. 1 Pa = 1 N/1 m². When the area is greater, pressure is less. When the area is less, pressure is greater.

Formula to calculate pressure :

$\longmapsto \bf {P = \dfrac{F}{A} }$

• F denotes force
• P denotes pressure
• A denotes surface area

Since, the surface of the base is in the shape of square. So, surface area will be length times length.

$\longmapsto \rm {P = \dfrac{800 \; N }{(2 \times 2) \; m^2} }$

$\longmapsto \rm {P = \dfrac{800 \; N }{4 \; m^2} }$

$\longmapsto \rm {P = 200\; N.m^{-2}}$

$\longmapsto \bf {P = 200 \; Pa }$

∴ Pressure exerted by the block on the ground is 200 Pa.