Question

На левой чаше весов стоят гири 2 кг,3кг и 5 кг, а на правой - арбуз. Какова масса арбуза , если для равновесия пришлось положить на правую чашу весов 2кг 250 г? Зарание спасибо

Answer 1

2+3+5=10кг
10кг-2кг250г=7кг750г-вес арбуза

Answer 2

2+3+5=10 кг на левой чаше.
1кг=1000г
10кг=10000г
2кг 250г=2250г
10000-2250=7750г=7кг 750г
Ответ: весь арбуз весит 7 кг 750г.

Answer 3

Solution:

To find the mass of the watermelon, we can use the principle of moments. The principle of moments states that for an object to be in equilibrium, the sum of the clockwise moments about any point must be equal to the sum of the anticlockwise moments about the same point.

Let's denote the mass of the watermelon as W.

According to the given information: - Left-hand side weights: 2 kg, 3 kg, and 5 kg. - Right-hand side weights: 2 kg 250 g.

We can set up the equation for the principle of moments:

2 kg * 2 + 3 kg * 3 + 5 kg * 5 = (W + 2.25 kg) * 1

Solving for W:

2 * 2 + 3 * 3 + 5 * 5 = (W + 2.25) * 1

4 + 9 + 25 = W + 2.25

38 = W + 2.25

W = 38 - 2.25

W = 35.75 kg

So, the mass of the watermelon is 35.75 kg.

Conclusion:

The mass of the watermelon is 35.75 kg.