Question

A bullet of mass ‘a’ and velocity ‘b’ is fired into a large block of wood of mass ‘c’. The bullet gets embedded into the block of wood. The final velocity of the system is(a) $\frac{b}{a+b}\times c$(b) $\frac{a+b}{c}\times a$(c) $\frac{a}{a+c}\times b$(d) $\frac{a+c}{a}\times b$

Answer 1

No external force is present so we can
apply conservation of momentum,
ab=(a+c)×v

option c is correct.

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