Question

Цепи выдерживают нагрузку 85 к Н .Можно ли на этой цепи удержать гранитную плиту объемом 4 м в кубе?

Answer 1

P=mg   m=ρv   P=ρvg=2600*4*9.8=104 000=104(кН)
 цепи такой вес не выдержат

Answer 2

Calculating the Load Capacity of the Chain

To determine if the given chain can support the weight of a granite slab with a volume of 4 cubic meters, we can use the formula:

Load = Volume × Density × Gravity

Where: - Volume = 4 cubic meters - Density of granite = 2.75 g/cm³ (or 2750 kg/m³) - Gravity = 9.81 m/s²

Calculation

Using the given values, we can calculate the load the chain needs to support:

Load = 4 m³ × 2750 kg/m³ × 9.81 m/s²

Result

The load comes out to be approximately 107,400 N (Newtons).

Conclusion

The load capacity of the chain is 85 kN (kilonewtons), which is equivalent to 85,000 N. Since the load of the granite slab is approximately 107,400 N, the chain would not be able to support the weight of the granite slab.