Why don t Rockets go straight up?
Why do rockets curve when they fly into space instead of going straight up? A: If a rocket just flew straight up, then it would fall right back down to Earth when it ran out of fuel! Rockets have to tilt to the side as they travel into the sky in order to reach orbit, or a circular path of motion around the Earth.
What is minimum escape velocity?
The escape speed of the earth at the surface is approximately 11.186 km/s. That means “an object should have a minimum of 11.186 km/s initial velocity to escape from earth’s gravity and fly to infinite space.”
What is escape velocity in physics class 11?
Class 11 Physics Gravitation. Escape Velocity. Escape Velocity. Escape velocity is the minimum velocity that a body must attain to escape the gravitational field of the earth. Suppose if we throw a ball,it will fall back.
Can you escape gravity?
I believe what you are trying to get at specifically is whether an object moving at constant speed could escape the earth’s gravity. The answer is yes, as long as you had a force to counteract gravity and allow the object to continue to move upwards. You’ve missed a little appreciated point about orbital velocities.
Why is it easier to reach orbit at the equator?
One spot on the equator has to go a much greater distance than a spot near the poles, for instance. So a rocket launching on the equator gets an extra speed boost, making it easier for the vehicle to reach the extra high velocities needed to achieve orbit.
How does NASA pick launch times?
The space station flies over the space center twice a day for about 10 minutes at each pass. Shuttle launch times are set to when the angle of Earth’s rotation will allow the orbiter to slip into the same plane that the space station is flying in. Those times shift with each passing day.
Why does a rocket use multiple stages?
A multistage rocket, or step rocket is a launch vehicle that uses two or more rocket stages, each of which contains its own engines and propellant. This staging allows the thrust of the remaining stages to more easily accelerate the rocket to its final speed and height.
What happens if there is a fire in space?
Fire is a different beast in space than it is on the ground. When flames burn on Earth, heated gases rise from the fire, drawing oxygen in and pushing combustion products out. In microgravity, hot gases don’t rise. Space flames can also burn at a lower temperature and with less oxygen than fires on Earth.