Statement
difficulty
A 10 Kg body is moving at
Solution
Data
- Total mass of th body and velocity before the explosion:
- Mass and velocity of the first piece:
- Mass and velocity of the second piece:
Resolution
Firstly, we can know the mass of the third piece, since the body had 10 kg before the explosion, the mass of the third piece will be m3 = mT - m1 - m2 = 2 kg. Because the linear momentum conservation theorema, the quantity of motion before and after the explosion mus be preserved: