Which will exert more pressure, 100 kg mass on 10 m² or 50 kg mass on 2 m²?
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Answer
Let, the following given data be allotted respectively
Mass (m1) = 100 kg
Area (A1) = 10 m2
Force (F1) = m1×g = 100×10
= 1000 N
And
Mass (m2) = 50 kg
Area (A2) = 4 m2
Force(F2) = m2×g = 50×10
= 500 N
∴ Their respective pressure will be
P
r
e
s
s
u
r
e
(
P
1
)
=
F
1
A
1
=
1000
10
= 100 Pa
P
r
e
s
s
u
r
e
(
P
2
)
=
F
2
A
2
=
500
4
= 125 Pa
Explanation:
As the P2>P1 the second case will exert more pressure.
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