A bullet of mass `m` moving with velocity `v` strikes a block of mass `M` at rest and gets embedded into it. The kinetic energy of the composite block will be

Options

A. `(1)/(2)m Mu^(2)`
B. `(1)/(2)(m+M)u^(2)`
C. `(mMu^(2))/(2(m+M))`
D. `((m+M)/(2mM))u^(2)`

Answer

C