Question

the mass of a brick is 2.5 kg and it’s dimensions are 20 cm x 10 cm x 5 cm. find the pressure exerted on the ground with different faces.

Answer 1

Answer:

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Answer 2

Answer:

Given:

Mass = 2.5kg

Dimensions = 20cm × 10cm × 5cm

Dimensions in metres = 0.2m × 0.1m × 0.05m

To find:

Pressure = ?

Pressure = Force/Area

Unknown values:

Force = ?

Area = ?

Pressure = ?

Firstly taking Force,

Force = mass × acceleration due to gravity

We know that, acceleration due to gravity is 9.8 exactly or 10 in approx.

Therefore, Force = 2.5 × 9.8 (or) 2.5 × 10 → 24.5N or 25N approx.

Area = l × b

Area = 0.2m × 0.1m

Area = 0.02m²

Therefore pressure = 24.5/0.02Nm-²

pressure = 0.49Nm-²

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Answer by

⊰⊹Amrutha Varshini⊰⊹ฺ