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  • 具體是:

    具體是:
    A space vehicle made up of two parts is travelling at 230 m/s
    the mass of partA is 450kg,the mass of partB is 1200 kg.
    an explosion causes the 450 kg part to separate and travel with a final velocity of 280 m/s
    What was the magnitude of the impulse on the 1200kg part during the seperation?
    英語人氣:429 ℃時間:2020-02-05 14:18:18
    優(yōu)質(zhì)解答
    the magnitude of the impulse of the sapcce vehicle before explosion (爆炸前宇宙飛船的動量):(450+1200)*230= 379 500 Nmthe magnitude of the impulse of A after explosion(爆炸后A的動量):450*280=126 ...
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