Question

A glass block of dimensions 10 cm x 10 cm x 4 cm and weight 8 N rests with its

sides 10 cm x 10 cm in contact with top of a table. Calculate the pressure exerted.

If the block is tilted and allowed to rest on the surface on side 10 cm x 4 cm, will

the pressure increase, decrease or remain the same?​

Answer 1

Answer:

area=10*10=100sqcm

=pressure=800pascals

if the block is tilted the pressure will decrease because surface area is reduced

Answer 2

The pressure which is exerted on the  top of the table is equal to 800 Pa

Explanation:

• Pressure can be defined as the force per unit area. The force remains constant because of the weight of the body D which is equal to 8 Newton.

• However the area changes on change in the the surface area of the table on which the object is placed. During the first case the pressure is equal to 8/(0.1x0.1/ = 800Pa , but in the second case the force is equal to 8/(0.1 x 0.04) = 2000 Pa.

• hence in the second case there is increase in the pressure exerted

To know more,

A force of 15 N is required to pull up a body ofmass 2 kg through a .

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