Question

A ballistic is a device for finding the speed of bullets. A bullet of mass 10.7 grams is shot into a block of mass 5.60 kg. After collision, the center of the mass of the block swings to a height of 50.0 mm. Find the speed of the bullet.

Answer 1

$Vo=m+M/m(2gh)^0.5$

Vo=10.7+5.60/5.60(2*10*50)^0.5

Vo=103.33m/s