Question

A bomb at rest explodes into 2 fragments; prove that the two fragments move in opposite direction.

I know the answer but I need to write it in theoretical manner

Answer 1

This can be explained by a concept called momentum....
Statement: The total momentum before and after explosion is conserved and sum is equal to 0.
let p1 and p2 be momentum of 2 parts of bomb..
Hence by definition p1+p2=0
=>p1=-p2.....
here -(minus) indicates they are in opposite direction...
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