Physics
25.12.2022 02:06
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In an experiment, a cement block of mass 14 kg was placed on top of 8 (carefully
In an experiment, a cement block of mass 14 kg was placed on top of 8 (carefully arranged) eggs without breaking the eggs.
1) Calculate the force per egg caused by the weight of the block.
2) If the pressure on each egg is 25 N/mm 2 , calculate the contact area, in mm 2 , between the block and one egg.
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2) If the pressure on each egg is 25 N/mm 2 , calculate the contact area, in mm 2 , between the block and one egg.
CoolRahim9090
5,0(19 marks)
1) The force per egg caused by the weight of the block is 17.15 N
2) 
Explanation:
Pressure
The pressure is computed as the force acting upon a surface divided by the area of the surface :
The weight of an object of mass m is:
W = mg
Where g is the gravitational acceleration of 
The cement block has a mass of m=14 kg, thus its weight is:
W = 14*9.8
W = 137.2 N
1) This weight is evenly distributed over the 8 eggs, thus the force per egg is:
F = 137.2 N/8= 17.15 N
The force per egg caused by the weight of the block is 17.15 N
2) It's given the pressure on each egg as 
and we know the force acting on each one is F=17.15 N. To find the contact area we solve the formula of the pressure for A:
Chapo1898
4,4(78 marks)
Ibelieve the answer you're looking for is
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