# Energy and explosions

## Homework Statement

An explosion breaks an object into two pieces, one of which has 1.5 times the mass of the other. If 7400 J were released in the explosion, how much kinetic energy did each piece acquire?

Momentum?
Kinetic Energy?

## The Attempt at a Solution

I used all types of formulas having to do with energies and momentum and nothing gave me an answer.

Also, the total energy released in the explosion is converted into kinetic energy (you have to assume that), so $$0.5m_1v_1^2+ 0.5m_2v_2^2=7500$$. Solve for v1/v2 and find the KE of each piece.