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A rectangular wooden block has mass of 4 kg , the length , breadth and the height are 50 cm , 25 cm and 10 cm. Find the pressure on the table top when

(i) the surface 50 cm * 25 cm is placed

(ii) the surface 25 cm * 10 cm is placed

F=W =4*10(considering g as 10)

F=W =40N

a)

P=F/A

P=40N/50CM*25CM

P=40N/1250cm sq

P=40N/0.125m sq

P=320 N/m sq (Pa)

similarly for case (b)