Answer;
In order of increasing pressure;
D < C < A <B
B, has the highest pressure while D. has the least pressure
Explanation;
Pressure = Force/ Area
10 N = 1 Kg
Therefore; for
B.A 20 kg object distributed on a square surface with dimensions 10 cm by 10 cm.
Pressure = 200/100
= 2 N/cm²
A .A 10 kg object distributed on a square surface with dimensions 10 cm by 10 cm.
Pressure = 100/100
= 1 N/cm²
C.A 30 kg object distributed on a square surface with dimensions 20 cm by 20 cm.
Pressure = 300/400
= 0.75 N/cm²
D .A 40 kg object distributed on a square surface with dimensions 30 cm by 30 cm
Pressure = 400/900
= 4/9 N/cm²
