How do spaceships or rocketships blast off?

Answer 1

Rockets use two different fuels. They are liquid nitrogen and liquid oxygen. When mixed togather, causing an explosion that is funneled down and propels the rocket upwards. This may sound simple, but it isn't. the launch pad must have an exit for the trust or it would bounce back and cause magor destruction. There are clamps that hold the ship down so it doesn't go head ver tail and crash. If all goes well, the ship i s on it's way out.

Answer 2

Spaceships or rocketships blast off by igniting their rocket engines, which generate a powerful thrust that propels the spacecraft into the sky. The burning fuel creates a controlled explosion that pushes the spacecraft away from Earth's gravitational pull. Once the desired velocity is reached, the rocket engines are shut off and the spacecraft continues its journey using its momentum.