Escape Velocity:
.
if you throw an object straight up, it will rise until the the negative acceleration of gravity stops it, then returns it to Earth. Gravity's force diminishes as distance from the center of the Earth increases, however. So if you can throw the object with enough initial upward velocity so that gravity's decreasing force can never quite slow it to a complete stop, its decreasing velocity can always be just high enough to overcome gravity's pull. The initial velocity needed to achieve that condition is called escape velocity.
.
From the surface of the Earth, escape velocity (ignoring air friction) is about 7 miles per second, or 25,000 miles per hour. Given that initial speed, an object needs no additional force applied to completely escape Earth's gravity
.
if you throw an object straight up, it will rise until the the negative acceleration of gravity stops it, then returns it to Earth. Gravity's force diminishes as distance from the center of the Earth increases, however. So if you can throw the object with enough initial upward velocity so that gravity's decreasing force can never quite slow it to a complete stop, its decreasing velocity can always be just high enough to overcome gravity's pull. The initial velocity needed to achieve that condition is called escape velocity.
.
From the surface of the Earth, escape velocity (ignoring air friction) is about 7 miles per second, or 25,000 miles per hour. Given that initial speed, an object needs no additional force applied to completely escape Earth's gravity
1/2 mv2 = GMm/R
.
Where m is the mass of the object, M mass of the earth, G is the gravitational constant, R is the radius of the earth, and v is the escape velocity. It simplifies to:
.
v = sqrt(2GM/R)
.
or
.
v = sqrt(2gR)
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Where g is acceleration of gravity on the earth's surface.
.
The value evaluates to be approximately:
.
11100 m/s
40200 km/h
25000 mi/h
.
Where m is the mass of the object, M mass of the earth, G is the gravitational constant, R is the radius of the earth, and v is the escape velocity. It simplifies to:
.
v = sqrt(2GM/R)
.
or
.
v = sqrt(2gR)
.
Where g is acceleration of gravity on the earth's surface.
.
The value evaluates to be approximately:
.
11100 m/s
40200 km/h
25000 mi/h
by Zero Kasharion September 22, 2005
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by Ashley&Vanessa January 5, 2012
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An ultra cool & modern way to get around.....usually 3 wheels.....always a recumbent for that laud back style and comfort......fast......some drip with carbon fibre, some are home built project but all velomobiles are ultra cool !
by Fast Rider February 27, 2013
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Velocirapist (/vɨˈlɒsɨræpəst/; meaning "swift rapist") is a genus of dromaeosaurid theropod dinosaur rapist that lived approximately 75 to 71 million years ago during the later part of the Cretaceous Period.
Smaller than other dromaeosaurids like Molestosaurus and Roofiehycthys, Velocirapist nevertheless shared many of the same anatomical features. It was a bipedal, feathered rapist with a long tail and an enlarged sickle-shaped phallus, which is thought to have been used to rape its prey.
Velocirapist (/vɨˈlɒsɨræpəst/; meaning "swift rapist") is a genus of dromaeosaurid theropod dinosaur rapist that lived approximately 75 to 71 million years ago during the later part of the Cretaceous Period.
Smaller than other dromaeosaurids like Molestosaurus and Roofiehycthys, Velocirapist nevertheless shared many of the same anatomical features. It was a bipedal, feathered rapist with a long tail and an enlarged sickle-shaped phallus, which is thought to have been used to rape its prey.
A turkey, huh? OK, try to imagine yourself in the Cretaceous Period. You get your first look at this "six foot turkey" as you enter a clearing. He moves like a bird, lightly, bobbing his head. And you keep still because you think that maybe his visual acuity is based on movement like T-Rex - he'll lose you if you don't move. But no, not Velocirapist. You stare at him, and he just stares right back. And that's when the rape comes. Not from the front, but from behind, from the other two rapists you didn't even know were there. Because Velocirapist's a pack hunter, you see, he uses coordinated rape patterns and he is out in force today. And he slashes at you with this... A six-inch retractable phallus. He doesn't bother to bite your jugular like a lion, say... no no. He pounds at you here, or here...
by Neon Hotsie December 18, 2013
Get the velocirapist mug.An uncommon, feisty, zany, split second mood changing creature that you do not want to mess with if she is trying to protect her young. Although viewed by the outside circle as a right winged, closed minded loudmouth those with inside knowledge of what makes this creature tick will attest that their is passion for freedom, country and family.
by axegrinded February 4, 2010
Get the veloy mug.What comes from taking a dump very hard, often after not shitting for a while; It usually gets unloaded within 1-2 seconds and travels at lethal velocities, hence the name.
On the road trip last thursday, Bob didn't crap for days. But when we finally got to a truck stop, I could've sworn the earth exploded. The stench emanating from the bathroom that housed Bob's velociturds was unbearable. I could even smell that unholy odor for a few hours afterwards.
by GUY_9000 November 13, 2011
Get the Velociturd mug.(v.) To express doing something that requires an intense amount of energy and brain power. It can be used in all matters and forms, ranging from simple day-to-day activities to more profound undertakings.
Tara: Dan, I woke up this morning and immediately velocirapted out of bed!
Dan: Whoa! That's crazy talk!
Dan: Whoa! That's crazy talk!
by mr.bojangles4251 December 17, 2011
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