Conservation of momentum physics homework

[wudingbin]

when a body explode into two different masses, and fly apart.
will the two mass have same kinetic energy, or will it experience same force on it during explosion?

 

[kamerling]

I don't know what you mean with "will it experience same force on it during explosion"

you can solve this with conservation of momentum.
Suppose the masses are m_1 and m_2 and the masses fly off with speeds v_1 and v_2
what was the initial momentum before the explosion?
what do you know about the directions that the masses will take?
give an equation with conservation of momentum relating m_1, m_2, v_1 and v_2

now combine this equation with the assumption that the masses have the same energy.
what can this tell you about m_1 and m_2?

 

[wudingbin]

but, it is not linear momentum.
so, how to apply the law of conservation of momentum if the two masses are moving in an angle with respect to each other.
so u r saying that the two masses have kinetic energy?

 

[kamerling]

If there are just two masses flying away, they must do this in opposite directions to make the total momentum zero.
you should try to be more accurate. I suppose you meant "That the two masses have the same kinetic energy" and I did not say that.
I just wanted you to combine this assumption with conservation of momentum, and see what that tells you about the two masses.

 

[wudingbin]

thanx, but the the two masses is not moving in the opposite direction, each of the two motion path makes a different angle with respect to ground.
so, what same quantities do the two masses possessed?

 

[xAxis]

It is not possible that two masses' paths have different angles after explosion (in the exploding body's referent system)

 

[wudingbin]

OK, thanks guys