(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A stationary radioactive nucleus of mass M ejects an α-particle of mass 'm' at a speed of 2.0 x 10^7 ms^-1 . Given M=55m, calculate the kinetic energy of the α-particle as a percentage of the final total kinetic energy.

2. Relevant equations

K.E=1/2 x M x V^2 {half m[v(squared)]}

Where m= mass,

v= velocity

3. The attempt at a solution

Dont know where to start at this to be honest :(

Thanks for any help given

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# Homework Help: Kinetic energy related

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