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I need this ASAP please. A rectangular block of mass 30 kg measures 0.1 m by
0.4 m by 1.5 m.
Calculate the maximum and minimum pressure

Sagot :

Answer:

P_min = 490 N/m²

P_max = 7350 N/m²

Explanation:

Formula for pressure is;

Pressure = Force/Area

We are given;

Mass = 30 kg

Dimensions of Block = 0.1 m by

0.4 m by 1.5 m.

Force(weight) = mg = 30 × 9.8 = 294 N

For minimum pressure, it will be at maximum area.

Max area will be at biggest dimensions.

Max area = 0.4 × 1.5 = 0.6 m²

P_min = 294/0.6

P_min = 490 N/m²

Similarly, maximum pressure will be at minimum area.

Minimum area = 0.1 × 0.4 = 0.04 m²

P_max = 294/0.04

P_max = 7350 N/m²