Question

Лошадь массой 400 кг стоит на плотформе 200 г. чему равна сила,действующая со стороны платформы на лошадь

Answer 1

Сила тяжести лошади:
F = m*g = 400*10=4 000 Н

По III закону Ньютона реакция платформы тоже 4 000 Н.  (Но платформа массой 200 грамм не выдержит лошадь...)

Answer 2

Calculation of the Force Acting on the Horse

To calculate the force acting on the horse, we need to consider the mass of the horse and the weight of the platform it is standing on.

Given: - Mass of the horse = 400 kg - Weight of the platform = 200 g

To find the force acting on the horse, we need to convert the weight of the platform from grams to kilograms. Since 1 kg = 1000 g, the weight of the platform is 0.2 kg.

Now, we can calculate the force acting on the horse using Newton's second law of motion, which states that force (F) is equal to mass (m) multiplied by acceleration (a). In this case, the acceleration is due to gravity, which is approximately 9.8 m/s^2.

Using the formula F = m * a, we can calculate the force acting on the horse as follows:

F = (mass of the horse + weight of the platform) * acceleration due to gravity F = (400 kg + 0.2 kg) * 9.8 m/s^2

Calculating the above expression, we find that the force acting on the horse is approximately 3921.6 N.

Please note that the above calculation assumes that the horse and the platform are on the surface of the Earth and neglects any other external forces that may be acting on the system.

Conclusion

The force acting on the horse due to the platform is approximately 3921.6 N.