Questions
A space craft of mass 'M', moving with velocity 'v' suddenly breaks into two pieces. After the explosion mass 'm' becomes stationary. What is the velocity of the other part of the craft ?
detailed solution
Correct option is A
Total momentum will be conserved. Initial momentum = Final momentumM.v=m×0+(M-m)v' ∴v'=MvM-mTalk to our academic expert!
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A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms-1 . The kinetic energy of the other mass is
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