escape velocity must travel about 8 km/s or 18,000 mi/hr trouble is that at this speed the...

Escape Velocity

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

http://rds.yahoo.com/_ylt=A0S020mXSMFIFOAA_D.JzbkF;_ylu=X3oDMTBxZG05bDQ2BHBvcwMzBHNlYwNzcgR2dGlkA0kwOTFfMTEw/SIG=1gukhac1d/EXP=1220712983/**http%3A//images.search.yahoo.com/images/view%3Fback=http%253A%252F%252Fimages.search.yahoo.com%252Fsearch%252Fimages%253Fp%253Drocket%2526fr%253Dyfp-t-501%2526ei%253Dutf-8%2526js%253D1%2526x%253Dwrt%26w=465%26h=600%26imgurl=www.williamsclass.com%252FWebPage%252Fpwrobel%252FJpeg%252Frocket.jpg%26rurl=http%253A%252F%252Fwww.williamsclass.com%252FWebPage%252Fpwrobel%252FJpeg%26size=50.6kB%26name=rocket.jpg%26p=rocket%26type=JPG%26oid=4b6d59cbbf627f38%26no=3%26tt=1,406,035%26sigr=11hutsp2m%26sigi=11ltkjm99%26sigb=12mv6931b

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

http://rds.yahoo.com/_ylt=A0S0205SSMFIbOQAyouJzbkF;_ylu=X3oDMTBxZG05bDQ2BHBvcwMzBHNlYwNzcgR2dGlkA0kwOTFfMTEw/SIG=1j8i1ja2a/EXP=1220712914/**http%3A//images.search.yahoo.com/images/view%3Fback=http%253A%252F%252Fimages.search.yahoo.com%252Fsearch%252Fimages%253Fp%253Dsatellite%2526fr%253Dyfp-t-501%2526toggle%253D1%2526cop%253Dmss%2526ei%253DUTF-8%26w=1024%26h=768%26imgurl=www.toocharger.com%252Fimg%252Fgraphiques%252Ffonds_d_ecran%252Fespace%252Fsatellites%252Fsatellite.2223.jpg%26rurl=http%253A%252F%252Fwww.down-fr.com%252Ffiches%252Fgraphique%252Fsatellite%252F2223.htm%26size=268.8kB%26name=satellite.2223.jpg%26p=satellite%26type=JPG%26oid=7ed34ba4e6335c0e%26no=3%26tt=2,568,955%26sigr=11qt7ooed%26sigi=12km8b2kd%26sigb=12vv8lrab

Escape Velocity

Forces in Orbit

Elliptical Orbit

Comets

Sun

comet

elliptical Orbit

Escape speed – speed at which an object shot vertical can escape

earth 11.2 km/s = 25000 mi/hr

sun 620 km/s

moon 2.4 km/s

mars 5.0 km/s

escape velocity must travel about 8 km/s or 18,000 mi/hr trouble is that at this speed the...

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