Question

На столе стоит коробка с собственой массой 200г. В коробке лежат 15 одинаковых кубиков. Наидите массу одного кубика в граммах, есл.эи сила тяжести, действующая на коробку с кубиками равна 5Н.

Answer 1

Ответ: 20 г

Объяснение:

сила тяжести F=mg=(m1+m2)g=(m1+nm)g,

где m1=0,2кг - масса коробки, n=15 кубиков, а m- масса 1 кубика, которую надо найти. g=10Н/кг

Выразим   m=(F-m1g) /ng

m=(5 Н-0,2 кг*10Н/кг)  / 15*10Н/кг=3 кг/150=0,02 кг=20г

Answer 2

Calculation of the Mass of One Cube

To find the mass of one cube, we can use the given information that the total mass of the box with the cubes is 200 grams and the force of gravity acting on the box is 5 Newtons.

The force of gravity acting on an object can be calculated using the formula:

Force of gravity = mass × acceleration due to gravity

In this case, the force of gravity is given as 5 Newtons, and the acceleration due to gravity is approximately 9.8 m/s^2.

Therefore, we can rearrange the formula to solve for the mass of the box:

Mass of the box = Force of gravity / acceleration due to gravity

Substituting the given values:

Mass of the box = 5 N / 9.8 m/s^2

Calculating this, we find that the mass of the box is approximately 0.51 kilograms.

Now, we need to find the mass of one cube. Since there are 15 identical cubes in the box, we can divide the mass of the box by the number of cubes:

Mass of one cube = Mass of the box / Number of cubes

Substituting the values:

Mass of one cube = 0.51 kg / 15

Calculating this, we find that the mass of one cube is approximately 0.034 kilograms or 34 grams.

Therefore, the mass of one cube is approximately 34 grams.