How Can I Calculate Kinetic Energy in an Explosion?

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SUMMARY

The discussion centers on calculating the kinetic energy of two pieces resulting from an explosion that released 7500J of energy. One piece has a mass 1.5 times greater than the other. The correct approach involves applying both the conservation of momentum and the conservation of energy principles to determine the kinetic energy acquired by each piece. The initial energy is set at 7500J, with no potential gravitational energy considered at the moment of the explosion.

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Homework Statement


An explosion breaks an object into 2 pieces, one of which has 1.5 times the mass as the other. If the explosion released 7500J, how much kinetic energy did each piece acquire?


Homework Equations



conservation of momentum and energy

The Attempt at a Solution



I have tried using conservation of energy where the initial energy=7500J and no potential gravitational energy because i saw that that point of the explosion is y=0 and i said that Kinetic energy of object one plus kinetic energy of object 2=energy final right after the explosion.I just can't get anywhere
 
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You've done conservation of energy, but you ought to use momentum as well.
 

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