Question

Брусок массой 400 г имеет размеры 20 на 20 на 40 см Определить наибольшее давление которое брусок оказывает на поверхность

Answer 1

3200000 грамм я думаю так

решение

20+20+40=80грамм

400×80=3200000грамм то есть 32 тонны

Answer 2

Calculation of Pressure Exerted by the Block

To determine the maximum pressure exerted by the block, we need to calculate the pressure using the formula:

Pressure (P) = Force (F) / Area (A)

The force exerted by the block can be calculated using the formula:

Force (F) = mass (m) x acceleration due to gravity (g)

Given that the mass of the block is 400 g (0.4 kg) and the acceleration due to gravity is approximately 9.8 m/s^2, we can calculate the force:

F = 0.4 kg x 9.8 m/s^2

Now, we need to calculate the area of the surface on which the block is placed. Since the block has dimensions of 20 cm x 20 cm x 40 cm, we can assume that the surface area in contact with the ground is 20 cm x 20 cm = 400 cm^2.

To convert the area to square meters, we divide by 10,000:

A = 400 cm^2 / 10,000 = 0.04 m^2

Now, we can calculate the pressure exerted by the block:

P = F / A

Substituting the values, we get:

P = (0.4 kg x 9.8 m/s^2) / 0.04 m^2

Calculating this expression gives us the maximum pressure exerted by the block on the surface it is placed on.

Please note that the above calculations assume that the block is in equilibrium and that the entire weight of the block is evenly distributed over the surface area in contact with the ground.