Question

A block of weight 2 kg and dimension 2cmx4cmx1cm is kept on a table. The Pressure applied by the surface whose area is 2cmx4cm is​

Answer 1

Answer:

The mass of the wooden block = 2 kg

The dimensions = 2 cm × 4 cm × 1 cm

Here, the weight of the wooden block applies a force on the table top.

That is,

Force F = m × g

F = 2 kg × 10 m s-2

F = 20 N

Force = 20N

Area of a side = length × breadth

= 2 cm × 4 cm

= 8 cm2. = 0.0008 m2

Area = 0.0008 m2

Pressure = Force/Area

Pressure = 20 N ⁄ 0.0008m2

Pressure = 25000 N m-2