Question

Вес шкафа равен 69 кН. У шкафа четыре ножки. Площадь опоры каждой ножки равна 16 см2. Какое давление оказывает шкаф на соответствующую поверхность? (При необходимости ответ округли до целого числа!) Давление равно кПа.

Answer 1

Ответ: 10781кПа

Объяснение:

Дано:

Р=69кН=69000Н

S1=16cм²=0,0016м²

n=4

----------------------

р-?

р=Р/S=P/4S1=69000/(4*0,0016)=10781250Па=10781кПа

Answer 2

Calculation of Pressure

To calculate the pressure exerted by the cabinet on each of its legs, we need to divide the total weight of the cabinet by the total area of the legs.

Given: - Weight of the cabinet = 69 kN - Number of legs = 4 - Area of each leg = 16 cm²

To find the pressure, we can use the formula:

Pressure = Weight / Area

Converting the weight from kilonewtons (kN) to newtons (N):

Weight = 69 kN = 69,000 N

Converting the area from square centimeters (cm²) to square meters (m²):

Area = 16 cm² = 0.0016 m²

Now, we can calculate the pressure:

Pressure = 69,000 N / 0.0016 m²

Calculating the pressure:

Pressure = 43,125,000 Pa

Therefore, the pressure exerted by the cabinet on each leg is approximately 43,125,000 Pa.

Please note that the answer has been rounded to the nearest whole number, as requested.