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दो समान द्रव्यमान गेंदों A तथा B के वेग क्रमशः 0.5 मी/से तथा `-0.3`मी/से है। एक रेखा के अनुदिश चले हुए टकराती हैं। यदि यह टक्कर प्रत्यास्थ है तो टक्कर के पश्चात B तथा A के वेग क्रमशः होंगे:
A. 0.3 मी/से तथा 0.5 मी/से
B. `-0.5` मी/से तथा 0.3 मी/से
C. 0.5 मी/से तथा `-0.3`मी/से
D. `-0.3` मी/से तथा 0.5 मी/से

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Correct Answer - C
गेंदों के द्रव्यमान समान हैं तथा टक्कर पूर्णतः प्रत्यास्थ है। अतः टक्कर के पश्चात इनके वेग परस्पर बदल जाएगी । अतः `v_(A)=-0.3` मी/से, `v_(B)=0.5` मी/से

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