Uzi maalum wa kupeana Likes: Comment chochote upate "Like"

Uzi maalum wa kupeana Likes: Comment chochote upate "Like"

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385. What is escape Velocity ?

Escape velocity is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion. On the surface of the Earth, the escape velocity is about 11.2 km/s, which is approximately 33 times the speed of sound (Mach 33) and several times the muzzle velocity of a rifle bullet (up to 1.7 km/s).
 
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