Question

Загружая мешок с картофелем в тракторный прицеп, работник за 7 секунд совершает работу равную 505 Дж. Какую мощность при этом развивает работник? (Ответ округли до целого значения). Ответ: мощность работника при загрузке мешка с картофелем равна Вт.

Answer 1

Мощность(P)=A/t;
P=505/7=72,1=72 Вт.

Answer 2

Calculation of Power

To calculate the power developed by the worker while loading a sack of potatoes into a tractor trailer, we can use the formula:

Power = Work / Time

Given that the worker completes the work in 7 seconds and the work done is 505 Joules, we can substitute these values into the formula to find the power.

Power = 505 J / 7 s

Calculating this, we find that the power developed by the worker is approximately 72 Watts.

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