3 ms·

Multiple people have pointed out the mistakes you are making, to no avail. I really don’t know what else can be said. It’s like you’re claiming 2+2 is 5. What e

Multiple people have pointed out the mistakes you are making, to no avail. I really don’t know what else can be said. It’s like you’re claiming 2+2 is 5. What else can I say? There is ample introductory material on Newtonian physics that you could learn from, only a google search away. It’s disrespectful of my time to assume I must be on the hook to handhold you through it.

nilkn 9y ago
You will have no trouble then pointing out the precise mistake in the calculation.
p2t2p 9y ago
Ok, let me ask a very straight and simple question. Imagine that I have a spacecraft with imaginable engine which is able to indefinitely provide thrust enough for this spacecraft to move straight up from the planet’s surface at the constant speed of 1 mph. Will this spacecraft leave the planet in indefinite amount of time or not? If not - what is going to stop it?
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zpconn 9y ago
I found a number of sources online that disagree with you. https://www.quora.com/Escape-velocity-is-supposed-to-be-24-000-mph-but-our-rockets-never-achieve-this-speed-How-does-that-work?share=1 https://www.quora.com/Escape-velocity-is-supposed-to-be-24-0... Multiple answers explain that there isn't a fixed minimum change in velocity required for an object to escape Earth's gravity. https://www.quora.com/Does-rocket-always-need-the-escape-speed-11-2km-sec-to-escape-the-earth?share=1 https://www.quora.com/Does-rocket-always-need-the-escape-spe... The first answer here explains the same thing, using basically the same example (1 m/s instead of 1 mph). https://space.stackexchange.com/questions/4688/couldnt-i-escape-earths-gravity-traveling-only-1-mph-0-45-m-s https://space.stackexchange.com/questions/4688/couldnt-i-esc... The answers here overwhelmingly reiterate and support the same example in this thread.

nilkn 9y ago

You will have no trouble then pointing out the precise mistake in the calculation.

p2t2p 9y ago

Ok, let me ask a very straight and simple question. Imagine that I have a spacecraft with imaginable engine which is able to indefinitely provide thrust enough for this spacecraft to move straight up from the planet’s surface at the constant speed of 1 mph. Will this spacecraft leave the planet in indefinite amount of time or not? If not - what is going to stop it?

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zpconn 9y ago

I found a number of sources online that disagree with you. https://www.quora.com/Escape-velocity-is-supposed-to-be-24-000-mph-but-our-rockets-never-achieve-this-speed-How-does-that-work?share=1 https://www.quora.com/Escape-velocity-is-supposed-to-be-24-0... Multiple answers explain that there isn't a fixed minimum change in velocity required for an object to escape Earth's gravity. https://www.quora.com/Does-rocket-always-need-the-escape-speed-11-2km-sec-to-escape-the-earth?share=1 https://www.quora.com/Does-rocket-always-need-the-escape-spe... The first answer here explains the same thing, using basically the same example (1 m/s instead of 1 mph). https://space.stackexchange.com/questions/4688/couldnt-i-escape-earths-gravity-traveling-only-1-mph-0-45-m-s https://space.stackexchange.com/questions/4688/couldnt-i-esc... The answers here overwhelmingly reiterate and support the same example in this thread.