Question

Подъемник за 1 час поднимает 60 т бетона на высоту 12 м. Определить мощность двигателя,необъходимую для совершения этой работы?

Answer 1

   Дано: m=60 т                     
h=12 м
t=1 ч
N-? 
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СИ
60000 кг
3600 с
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Решение
 N= A/t
A=FS
F=mg
F=60000x10=600000 Н
S=h=12 м
A=600000x12= 7200000 Дж
N= 7200000:3600= 2000 Вт ; 2 кВт

Answer 2

..............................

Answer 3

Calculation of Power Required

To determine the power required for the lift to raise 60 tons of concrete to a height of 12 meters in 1 hour, we can use the formula:

Power (P) = Work (W) / Time (t)

The work done in lifting the concrete can be calculated using the formula:

Work (W) = Force (F) x Distance (d)

In this case, the force is equal to the weight of the concrete, which can be calculated using the formula:

Force (F) = Mass (m) x Acceleration due to gravity (g)

Given that the mass of the concrete is 60 tons and the acceleration due to gravity is approximately 9.8 m/s^2, we can calculate the force:

Force (F) = 60,000 kg x 9.8 m/s^2

The distance lifted is 12 meters.

Now, we can calculate the work done:

Work (W) = Force (F) x Distance (d)

Substituting the values:

Work (W) = (60,000 kg x 9.8 m/s^2) x 12 m

Finally, we can calculate the power required:

Power (P) = Work (W) / Time (t)

Substituting the values:

Power (P) = [(60,000 kg x 9.8 m/s^2) x 12 m] / 3600 s

Let's calculate the power required.