A6.0-kg object, initially at rest in free space, "explodes" into three segments of equal mass. two of these segments are observed to be moving with equal speeds of 20 m/s with an angle of 60° between their directions of motion. how much kinetic energy is released in this explosion?

Explanation:

As we know that the 6 kg object was at rest initially

So here since net force on the system is zero

so the momentum of the system will always remains conserved

so we can say

now we know that

and the angle between the two objects is 60 degree

so we can say

now we can say that the speed of the third mass will be

now the total kinetic energy released in this system is given as

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

answer: good job it's all correct !

explanation: