It depends on the planet.
Initial velocity can be measured in the same units as any other velocity. In SI, that would be meters per second, but often km / hour are used, or (in a minority of countries) feet/second or miles/hour.
Feet per second is a unit of velocity, but not necessarily the same thing. Velocity could be in meters per hour or feet per second could be a measure of speed, which does not take direction into account, as velocity does.
Velocity is basically speed. Take the distance traveled and divide by the time. (Distance/Time).common units are:Miles per Hour (MPH)Meters per second (m/s)Kilometers per hour (KPH)feet per second (fps)
Velocity = Change in position/ Change in timeVelocity is a vector quantity meaning it has direction and magnitude. Most common measurements include:meters per second (m/s)feet per second (ft/s)and miles per hour (mi/h)
The two measures are of the same dimensions and, mathematically, are equivalent. They are both measures of acceleration. However, conceptually, there is a difference. The first is concerned with the change, per second, in the velocity when the latter is measured in kilometres per hour. The second is concerned with the change, per hour, in the velocity when the latter is measured in kilometres per second.
Charon is the largest satellite of the dwarf planet Pluto and has an escape velocity of 0.36 mi/second or 1,296 miles per hour.
The escape velocity of planet Jupiter is: ~133,097.71 miles per hour.
"Escape velocity" is a misnomer; there isn't any such thing. "Escape velocity" is the speed that it would take a projectile to escape completely from the Earth's gravity, IF IT WERE FIRED FROM THE SURFACE FROM A CANNON.The "escape velocity" from Earth is about 7 miles per second, or 25,000 miles per hour. But the Apollo spacecraft that went to the Moon didn't go anywhere near that speed. It didn't have to, because it was propelled by a rocket engine. With a big enough engine and enough fuel, you could "escape" from the Earth at 5 miles per hour, or less. It would be TERRIBLY wasteful of fuel, which is why we don't do it that way.
A rocket needs to travel at 7 miles-per-second or about 25,000-miles-per-hour to leave the pull of earth's gravitational force, and reach outer space. This speed is known as escape velocity.
The escape velocity of our sun is nearly 1.4 million mph(1,381,755.55 mph), about 55 times greater than Earth's.
The orbit insertion velocity near the Earth's surface is practically the same as the Earth escape velocity of 11.2 kilometers per second, or 25,805 miles per hour, or Mach 37!
Initial velocity can be measured in the same units as any other velocity. In SI, that would be meters per second, but often km / hour are used, or (in a minority of countries) feet/second or miles/hour.
We're not completely sure what you mean by "per hour per second". Going just by what we see in the question, it's an acceleration, not a velocity. "Six miles per hour north" would be a velocity.
The escape velocity on the planet Saturn is 35.5 kilometre per second. That is, a body has to be projected with a velocity of 35.5 kilometre per second so that it can escape from the gravitational pull of the planet. (Escape velocity on the earth is about 11.2 kilometre per second.)
The earth's escape velocity, which is the speed necessary to overcome gravity and achieve either orbit or escape, is about 25,000 miles per hour (or about 7 miles per second). From a physics standpoint, it's the speed at which a rocket's kinetic energy plus its gravitational potential energy is zero. Every celestial body has a different escape velocity, depending upon its mass.
Yes, several manned vehicles have reached escape velocity, which is about 25,000 miles per hour. The Apollo spacecraft used during the moon missions reached escape velocity en route to the moon. Also, the Space Shuttle reached escape velocity when it orbited the Earth or traveled to the International Space Station.
Feet per second is a unit of velocity, but not necessarily the same thing. Velocity could be in meters per hour or feet per second could be a measure of speed, which does not take direction into account, as velocity does.