cjl said:If the direction it was pointing was constant (after launch, it remained pointed at 45 degrees, regardless of flight path angle), its acceleration would depend on its thrust to weight ratio. If the thrust were greater than the square root of two times its weight (~1.414 times its weight), it would accelerate upwards along a line, at a shallower angle than 45 degrees. If its thrust were less than that, it would be unable to get off the ground.
Bob S said:If the thrust is constant, and it is carrying the fuel it is burning, then the thrust to mass ratio is constantly improving, and the acceleration is constantly increasing.
Rockets work by using a propulsion system, typically a liquid or solid fuel, to create thrust and propel the rocket into the air. The thrust is generated by the Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction. The burning of fuel releases hot gases, which are then expelled out of the bottom of the rocket, creating an opposite and equal force that propels the rocket upwards.
Rockets have various purposes, including satellite launch, space exploration, and military defense. They are also used in commercial industries for telecommunications, weather forecasting, and navigation systems. Rockets have also been used for scientific research and experiments, such as studying the Earth's atmosphere and studying other planets.
Rockets overcome Earth's gravity by achieving enough thrust to reach escape velocity, which is the minimum speed needed to break free from Earth's gravitational pull. This is usually achieved by the rocket's propulsion system, which continuously expels hot gases and creates enough force to overcome the pull of gravity. Once the rocket reaches escape velocity, it can travel into space without being pulled back to Earth.
A rocket is a vehicle that is designed to be launched into space and is used for various purposes, such as satellite launch and space exploration. A missile, on the other hand, is designed to be launched and guided towards a specific target, typically for military purposes. Missiles also tend to have more complex guidance systems compared to rockets, which are primarily focused on achieving propulsion and reaching a desired altitude.
Rockets undergo various tests before launch to ensure their safety and success. These tests include static firing, where the rocket's engines are ignited while the rocket is held in place, and simulated flights, where the rocket is put through similar conditions to what it will experience during launch. Engineers also use computer simulations and models to test various aspects of the rocket, such as aerodynamics and structural integrity, before conducting physical tests.