How fast in mph would it take to get to the , moon,sun,pluto,alpha centuri from the earth??

Question

How fast would it take you to get there in a normal rocket if you ignore gravity, the fuel needed to get there, and the velocity needed to get out of the atmosphere of earth. That is what I want to know.

Answer 1

Okay, we could say that 25,000mph is a "normal" rocket speed since we have launched a variety of objects and people at that speed. So just take the distance and divide it by that speed to get the hours. I get:

moon - 220,000/25,000 ~= 9hr

sun - 93,000,000/25,000 ~= 3720hr = 155 days

Pluto - 152880hr = 17.4 years

Alpha C. - 4.3LY/25000mph
=6x10^12/25000mph
=240,000,00hr
=10,000,000 days
=27,400 years

Answer 2

To escape Earth's gravity you need 25,000 MPH. Apollo left Earth at that speed to go to the Moon.

To get to the Sun, you need to cancel out the 66,000 MPH that Earth is orbiting the Sun. Basically, the centrifugal force of that 66,000 MPH is what keeps Earth from falling into the Sun. And it is not enough to just slow down a little, because as soon as you start falling toward the Sun, you speed up again and enter an elliptical orbit with a minimum distance from the Sun fixed by how much you initially slowed down. To fall all the way into the Sun you need to stop dead in space and let Earth leave you behind at 66,000 MPH. Then you would fall straight down into the Sun. Oddly enough, this is more speed than is needed to escape the solar system completely and go to another star.

To get to Pluto you need to leave Earth at about 36,000 MPH.
At least that is how fast the New Horizons mission to Pluto was going when it left Earth in 2006.

To escape the solar system completely and go to another star, you only need slightly more speed than going to Pluto. Call it 37,000 MPH. By the way, New Horizons will pass Pluto in 2015, snapping pictures as it does, and continue on out of the solar system, because it got a gravity assist from Jupiter on the way. Also note that it would take something like 300,000 years to get to the nearest star at this kind of speed. If you want to go to another star in as short a time as a human lifetime, you need to travel at fantastic speeds that we have no way of achieving with any technology we have now or are likely to have in the foreseeable future.

Answer 3

The escape velocity from the earth is approx 11.1Km/s or 7 miles per sec. Beyond that figure out how fast u wanna get there ....

Answer 4

If you have mentioned the time, one could give you the required speed in mph. Suppose you want reach the Sun in 8 min then the required speed is that of light, 186,000 mph.

Answer 5

if Sonti is an astronomer, he is a bad one. The speed of light is 186,000 miles per second (approximately) or 299,792,458 meters per second