Question

Question
A force of 50N is acting normally upon a horizontal surface of length 10cm and width 50cm what is the
pressure
(A) 100 Pa
(B) 0.1 Pa
(C) 1000 Pa
(D) 0.001 Pa​

Answer 1

Approximate Elastic Moduli for Selected Materials

Material Young’s modulus

×

10

10

Pa

Bulk modulus

×

10

10

Pa

Shear modulus

×

10

10

Pa

Aluminum 7.0 7.5 2.5

Bone (tension) 1.6 0.8 8.0

Bone (compression) 0.9

Brass 9.0 6.0 3.5

Brick 1.5

Concrete 2.0

Copper 11.0 14.0 4.4

Crown glass 6.0 5.0 2.5

Granite 4.5 4.5 2.0

Hair (human) 1.0

Hardwood 1.5 1.0

Iron 21.0 16.0 7.7

Lead 1.6 4.1 0.6

Marble 6.0 7.0 2.0

Nickel 21.0 17.0 7.8

Polystyrene 3.0

Silk 6.0

Spider thread 3.0

Steel 20.0 16.0 7.5

Acetone 0.07

Ethanol 0.09

Glycerin 0.45

Mercury 2.5

Water 0.22

I hope you are understand my solution