Classical Mechanics (Kibble & Berkshire) · Problem 10.12

The angular momentum principle — T.W.B. Kibble, F.H. Berkshire

Physics — Mechanics · collisions

Problem

A body of mass

4m

is at rest when it explodes into three fragments of masses

2m

m

and

m

. After the explosion the two fragments of mass

m

are observed to be moving with the same speed in directions making

120^\circ

with each other. Find the proportion of the total kinetic energy carried by each fragment.