art B $-$ Written Answer $(5$ questions, $50$ marks$)$

if Inbor $($GCe$)-$ vaasse:

Vitadiource Bookat$-$

A $20$ g bullet moving directly upward at $850\frac{m}{s}$ strikes and passes through the center of mass of a $7\mathrm{.}0$ kg block initially at rest. The bullet emerges from the block moving directly upward at $200\frac{m}{s}.$