Question

Яку потужність розвиває важкоатлет, якщо за 3 секунди підіймає на висоту 2 м штангу вагою 1346 Н? Округли відповідь до 3 знаків після коми.Відповідь: важкоатлет розвиває потужність яка дорівнює  кВт. ​

Answer 1

Ответ: 0,897кВт

Объяснение:

Дано:

t=3c

h=2м

P=1346Н

---------------

N-?

N=A/t=Ph/t=1346*2/3=897,333Вт=0,897кВт

Answer 2

Calculating the Power Developed by the Weightlifter

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

Power = Work / Time

Where: - Work is the force applied to lift the weight multiplied by the distance over which the force is applied. - Time is the duration over which the work is done.

Given: - Force (F) = 1346 N (Newtons) - Distance (d) = 2 m (meters) - Time (t) = 3 s (seconds)

We can calculate the power developed by the weightlifter using the provided values.

Calculation

Using the formula for power:

Power = Work / Time

The work done by the weightlifter can be calculated using the formula:

Work = Force × Distance

Substitute the given values: - Force (F) = 1346 N - Distance (d) = 2 m

Work = 1346 N × 2 m = 2692 J (Joules)

Now, we can calculate the power:

Power = Work / Time

Substitute the calculated work and given time: - Work = 2692 J - Time (t) = 3 s

Power = 2692 J / 3 s ≈ 897.333 W (Watts)

Answer

The power developed by the weightlifter is approximately 897.333 W (Watts).