Answer to Question #264962 in Mechanics | Relativity for Moonlight

Question

A lead bullet of mass 50g is fired with velocity 300ms^-1 into a lead block of mass 0.75kg, given that the lead block can move freely, calculate the combine speed of the bullet and the block after the impact

Answer 1

$mv=(M+m)u,$

$u=v\frac m{M+m}=18.8~\frac ms.$