Question

мальчик перевозит груз по горизонтальному участку пути на расстоянии 115 м за 10 минут сила тяги равна 250 Ньютонов Определите работу совершённую мальчика и развиваемую мощность срочно срочно срочно очень нужно срочно пожалуйста​

Answer 1

Ответ: работа 28750 дж, мощность 47.9 Вт -> 48 Вт (если нужно округлить до целых)

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Answer 2

Calculation of Work Done by the Boy

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

Work = Force × Distance

Given: - Distance = 115 m - Force = 250 Newtons

Substituting the values into the formula, we get:

Work = 250 N × 115 m

Calculating the result:

Work = 28750 Joules.

Therefore, the work done by the boy is 28750 Joules.

Calculation of Power Developed by the Boy

To calculate the power developed by the boy, we can use the formula:

Power = Work / Time

Given: - Work = 28750 Joules - Time = 10 minutes = 600 seconds

Substituting the values into the formula, we get:

Power = 28750 J / 600 s

Calculating the result:

Power = 47.92 Watts.

Therefore, the power developed by the boy is approximately 47.92 Watts.