Understanding g-force 100kph is 28m/s, 28 / 2.3 = 12m/s2, 12 / 9.8 = 1.2g.

For instance, on Earth, a 5.0-kg object weighs 49 N; on the Moon, where g is 1.67m/s2, the object weighs 8.4 N.

Typical examples

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In order for them to accelerate to light speed from 25,000mph, and achieve no more than 10 g’s, a force that is still virtually unbearable, it would take approximately 3,058,992 seconds, 50,983 hrs, 2,124 days, or 5.8 years, then doubling of course to allow for the the equally powerful negative G-forces you’d achieve …

According to wikipedia, interstellar travel at 1G would take approximately 1 year + the distance in lightyears. Proxima Centauri (4.2 light years) for example would take 5.2 years. But that time is from the viewpoint of stationary observers at the departure point.

By 2024, it’s projected to reach a maximum speed of 430,000 mph (692,000 km/h). As of the 27th of September 2020, the Parker Solar Probe has already accelerated to a speed of 289,927 mph (466,592 km/h) relative to the Sun, officially becoming the fastest spacecraft to date.

Apollo astronauts experienced about 4 G’s on the Saturn V rocket, while astronauts riding in NASA’s space shuttles were subjected to only about 3 G’s. The most intense ballistic re-entry of a Soyuz spacecraft happened in 2008, when three Expedition 16 crewmembers experienced more than 8 G’s before landing off-course.

So basically, on an interplanetary journey, you can fire your engines to keep increasing speed for maybe half the journey. You can do this by turning the ship around and firing the engine in the direction you are moving. That is the “flying backwards” you are seeing.

For all the previous episodes, the Navoo did not rotate. They created artificial gravity just like everyone else—they had rockets accelerate the spacecraft. Oh, you should note that often the spaceships are flying backwards because they don’t actually fly in space.

Space ships do not stop when they run out of fuel. While outer space does contain gas, dust, light, fields, and microscopic particles, they are in too low of a concentration to have much effect on spaceships. As a result, there is essentially zero friction in space to slow down moving objects.

Objects are not born in space. So no object will stay stationary in space forever Unless two forces of equal and opposite effect work on it, that time it may stay in one position. As stated by Newton’s Law, object will rest in motion or continues to move at constant velocity unless external force applied.

about 17,500 miles per hour

You can keep accelerating as long as you have the means. Due to the distorting effects of the theory of relativity on space and time, you can keep accelerating at a constant acceleration forever, and yet never hit the speed of light.

Actually, a strong force of gravity, about 90 percent of the gravity on Earth, is placed on the ISS. If you throw a ball on Earth, it will fly for a little bit, and then fall to the ground. If you throw the ball faster, it will fly a little bit further.

At a constant acceleration of 1 g, a rocket could travel the diameter of our galaxy in about 12 years ship time, and about 113,000 years planetary time. If the last half of the trip involves deceleration at 1 g, the trip would take about 24 years.

Friction, caused by things in physical contact with each other, is largely absent in space. Space is almost totally empty, so there is no “road” for the space ship to rub against. 2. But since gravity decreases with distance from a planet or star, the farther out into space DS1 is, the less gravity will slow it down.