Question

С какой силой притягиваются два железнодорожных вагона массой 70 т каждый, если расстояние между ними равно 200 м?

Answer 1

$F = G\frac{m_1 * m_2}{r^2}$

G - гравитационная постоянная ( 6,67 * 10⁻¹¹ Н * м₂ / кг² )
m₁ - масса первого объекта ( 70 т = 70000 кг )
m₂ - масса второго объекта  ( 70 т = 70000 кг )
r - расстояние ( 200 м )

$F = (6,67 * 10^{-11}) * \frac{70000 * 70000}{200^2} = (6,67 * 10^{-11}) * \frac{4900000000}{40000}$ = $(6,67 * 10^{-11}) * 122500$ = 0,0000081 H 

Answer 2

Calculation of Force between Two Railway Wagons

To calculate the force of attraction between two railway wagons, we can use the formula for gravitational force:

F = G * (m1 * m2) / r^2

Where: - F is the force of attraction - G is the gravitational constant (approximately 6.674 × 10^-11 N m^2/kg^2) - m1 and m2 are the masses of the two wagons (70 tons each, which is 70,000 kg) - r is the distance between the centers of the wagons (200 meters)

Calculation

Using the given values: - G = 6.674 × 10^-11 N m^2/kg^2 - m1 = m2 = 70,000 kg - r = 200 meters

We can calculate the force of attraction using the formula:

F = (6.674 × 10^-11) * (70,000 * 70,000) / (200^2)

Result

The force of attraction between the two railway wagons is approximately 137,450 Newtons.