A spacecraft of mass M moves with velocity V in free space at first, then it explodes…
Physics · JEE Main · NTA Exams — Laws of Motion
A spacecraft of mass M moves with velocity V in free space at first, then it explodes, breaking into two pieces. If after explosion a piece of mass m comes to rest, the other piece of spacecraft will have a velocity :
- \(\frac{\mathbf{M V}}{\mathbf{M}-m}\)
- \(\frac{\mathbf{M V}}{\mathbf{M}+\mathbf{m}}\)
- \(\frac{\mathrm{mV}}{\mathrm{M}-\mathrm{m}}\)
- \(\frac{\mathrm{mV}}{\mathrm{M}+\mathrm{m}}\)
Answer
(A) M V M -m
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