具体是:Aspacevehiclemadeupoftwopa-查字典问答网
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  具体是:Aspacevehiclemadeupoftwopartsistravellingat230m/sthemassofpartAis450kg,themassofpartBis1200kg.anexplosioncausesthe450kgparttoseparateandtravelwithafinalvelocityof280m/sWhatwasthemagnitudeofthe

  具体是:

  Aspacevehiclemadeupoftwopartsistravellingat230m/s

  themassofpartAis450kg,themassofpartBis1200kg.

  anexplosioncausesthe450kgparttoseparateandtravelwithafinalvelocityof280m/s

  Whatwasthemagnitudeoftheimpulseonthe1200kgpartduringtheseperation?

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2020-07-2514:09
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刘谭

  themagnitudeoftheimpulseofthesapccevehiclebeforeexplosion(爆炸前宇宙飞船的动量):(450+1200)*230=379500NmthemagnitudeoftheimpulseofAafterexplosion(爆炸后A的动量):450*280=126...

2020-07-25 14:11:26
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