Escape Velocity Must travel about 8 km/s or 18,000 mi/hr Trouble is that at this speed the atmosphere heats up objects and burns them up Image from.

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Presentation transcript:

Escape Velocity

Must travel about 8 km/s or 18,000 mi/hr Trouble is that at this speed the atmosphere heats up objects and burns them up Image from Yahoo images

What About A Satellite Some think that satellites are too far away to be effected by gravity – not true The high altitude is to put satellites outside the earths atmosphere – not gravity Image From Yahoo images

Escape Velocity

Forces in Orbit

Elliptical Orbit

Comets

Escape speed – speed at which an object shot vertical can escape earth 11.2 km/s = mi/hr sun 620 km/s moon 2.4 km/s mars 5.0 km/s

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