Question

3. Какую работу совершает мотор мопеда за 5 мин, если его скорость движения 10 м\с, сила тяги мотора 10кН 4. Насос за 5 мин закачивает воду объёмом 3 м3 из колодца глубиной 12 м. какую работу совершает насос, какова его мощность.

Answer 1

Тоже такой же вопрос, извини, но я незнаю ответ

Answer 2

Calculation of Work Done by the Moped Engine

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

Work = Force x Distance

Given: - Speed of the moped = 10 m/s - Force of the engine = 10 kN

To find the distance covered by the moped in 5 minutes, we need to convert the time to seconds. There are 60 seconds in a minute, so 5 minutes is equal to 5 x 60 = 300 seconds.

The distance covered by the moped can be calculated using the formula:

Distance = Speed x Time

Substituting the given values, we have:

Distance = 10 m/s x 300 s = 3000 meters

Now, we can calculate the work done by the moped engine:

Work = Force x Distance = 10 kN x 3000 m = 30,000 kNm

Therefore, the work done by the moped engine in 5 minutes is 30,000 kilonewton-meters (kNm).