The third Soviet artificial Earth satellite moved at a speed of 7.9 km / s. Determine the kinetic energy
| March 1, 2021 | education
The third Soviet artificial Earth satellite moved at a speed of 7.9 km / s. Determine the kinetic energy of the satellite if its mass is 1327 kg.
Initial data: V (the speed with which the third Soviet artificial satellite moved) = 7.9 km / s (7.9 * 10 ^ 3 m / s); m (satellite mass) = 1327 kg.
The kinetic energy of an artificial satellite can be calculated by the formula: Ek = 0.5 * m * V ^ 2.
Calculation: Ek = 0.5 * 1327 * (7.9 * 10 ^ 3) ^ 2 = 41409035000 J ≈ 41.4 GJ.
Answer: The third Soviet artificial satellite had a kinetic energy of 41.4 GJ.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
