Table weight 2 kg Determine its pressure on the floor if the area of each leg is 4 cm², there are only 4 legs.

g = 10 m / s2.

m = 2 kg.

n = 4.

S1 = 4 cm2 = 0.0004 m2.

P -?

Pressure P is a scalar value that shows what force F acts on a unit area S. Pressure is determined by the formula: P = F / S.

The table acts on the floor by the force of its weight F, the value of which is determined by the formula: F = g * m, where g is the acceleration of gravity, m is the mass of the body.

The weight of the table F is distributed over the area of ​​contact of the legs with the floor S. Since the table has n legs, and the area of ​​contact of each is S1, the weight of the table is distributed over the area S = n * S1.

The formula for determining the table pressure will be: P = g * m / n * S1.

P = 10 m / s2 * 2 kg / 4 * 0.0004 m2 = 12500 Pa.

Answer: the table pressure on the floor is P = 12500 Pa.



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