# Question: An unstable atomic nucleus of mass

An unstable atomic nucleus of mass 17.0 X 10─27 kg initially at rest disintegrates into three particles. One of the particles, of mass 5.00 X 10─27 kg, moves along the y axis with a speed of 6.00 X 106 m/s. Another particle, of mass 8.40 X 10─27 kg, moves along the x axis with a speed of 4.00 X 106 m/s. Find

(a) The velocity of the third particle and

(b) The total kinetic energy increase in the process.

(a) The velocity of the third particle and

(b) The total kinetic energy increase in the process.

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