Question

(Пишу второй раз) Человек поднял за 14 с ведро воды массой 8 кг из колодца глубиной 6 м. Какую работу совершил человек? Какую мощность он при этом развивал? Считайте, что ведро двигалось равномерно. срочно пж. ДаЮ 35 баллов(только дайте правильный ответ )

Answer 1

Ответ:

Объяснение:

m=8 кг    h=6 м    t=14 c   A=?    P=?

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A=m*g*h=8*10*6=480 Дж

P=A/t=480/14≈34 Вт

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Answer 2

Calculation of Work:

To calculate the work done by the person, we can use the formula:

Work = Force × Distance

In this case, the force exerted by the person is equal to the weight of the water in the bucket, which is 8 kg. The distance the bucket is lifted is 6 m. Therefore, the work done by the person can be calculated as:

Work = 8 kg × 6 m = 48 kg·m

So, the person has done 48 kilogram-meters of work by lifting the bucket of water from the well.

Calculation of Power:

Power is the rate at which work is done. It can be calculated using the formula:

Power = Work / Time

However, the time taken to lift the bucket of water is not provided in the question. Therefore, we cannot calculate the exact power developed by the person without knowing the time taken.

If you provide the time taken to lift the bucket, I can help you calculate the power developed by the person.

Please let me know if there is anything else I can assist you with!