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A bullet moving with a velocity of 200 m per second penetrates a wooden block and comes to rest after travelling for centimetres inside it what velocity is needed for travelling distance of 9 cm in same block |
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Answer» Dear Student, Given VELOCITY = 200 cm/sec Initial velocity = 0 From the NETWON's THIRD Law of equation V^2- U^2 = 2as 40000 = 8 a a = 5000 cm/sec^2 v^2 = 40000+ 90000 V^2 = 130000 V = 100√13 cm/sec This would be the velocity. Cheers!! Regards, AJay (B.tech SECOND year, IIT(BHU)VARANASI ) |
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