a thick wood weighing 50kg is placed over a bed of 1000 pointed nails. The area of each nail is 2mm² . Calculate the pressure exerted by the wood
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Answered by
6
Answer:
Pressure is 250kPa.
Explanation:
Mass of wooden block= 50kg.
Therefore, thrust= 50kgf= 500N.
Area of 1 nail= 2mm².
Therefore, area of 1000 nails= (2×1000) mm².
= 0.002 m².
Therefore, pressure= Thrust/ Area= (500/0.002)N/m².
= 2,50,000N/m².
We know, 1N/m²= 1Pa.
Therefore, Pressure is 2,50,000Pa.
We know, 1000Pa=1kPa.
Therefore, pressure is 250kPa.
Answered by
1
Answer:
Given,
Mass =50kg
Dimension of wooden plank= 1 m×0.5 m
Weight, F=mg
F=50×10
F=500 N
Area =1×0.5=0.5m
2
.
Pressure =
Area
Force
Pressure =
0.5
500
=1000 Pa
Explanation:
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