Question

A block of glass is kept on a wooden board Mass of glass block is 2 kg and its dimension is are8×5×1centimetre find the pressure exerted by the glass block on the wooden board if it is made to lie on the board with its to dimension a: 5 cm X 1 cm b:8cm×5cm

Answer 1

Didnt know ihis answer

Answer 2

Given
Mass of block = 2 kg
dimension of block = 8*5*1 cm
in metres = 0.08*0.05*0.01 m
since pressure= force / area
force = m*g
=2*10
= 20 N

now,
pressure of a = f/a

= 20N/0.05*0.01
= 4 pascal

.
pressure of b = f/a
= 20/0.08*0.05
= 32 pascal