Question

a rectangular block of a metal weighs 270n as their dimensions 2x3x4cm calculate the greatest pressure of the metal block can exert in the floor

Answer 1

Explanation:

pressure=force/area

pressure is inversely proportional to the area of cross-section.

so, maximum area corresponds to least pressure.

so, least pressure= (5x10) / (0.2 x 0.08)=3125 pa

and, greatest pressure= (5x10) / (0.08 x 0.05)= 12500 pa

Answer 2

Explanation:

pressure=force/area

pressure is inversely proportional to the area of cross-section.

so, maximum area corresponds to least pressure.

so, least pressure= (5x10) / (0.2 x 0.08)=3125 pa

and, greatest pressure= (5x10) / (0.08 x 0.05)= 12500 pa

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